# User talk:Benjah-bmm27

Sometimes I accidentally omit the {{PD-user|Benjah-bmm27}} tag that I intend to include with all my uploads. An archive of all comments originally posted on this talk page regarding missing licenses can be found at User:Benjah-bmm27/licensing. Any image discussed in the archive now has a license.

Ben 16:15, 22 April 2007 (UTC)

## Image:Glycine-3D-sticks.png

Please add your files to appropriative pages and/or categories where other users could easily find them. For example to Category:Molecules.

EugeneZelenko 15:58, 21 March 2006 (UTC)

## Image:Glycine.png and other

Please note that SVG is better format for such images. --EugeneZelenko 16:12, 21 March 2006 (UTC)

But as for SVG vs. PNG, I can't create SVG files from Photoshop Elements which I use, and also, the Wikiproject on Chemistry suggests uploading chemical structures as hi-res PNGs, so that's what I'm doing.
May be these recommendations was written before MediaWiki software added support to SVG. In any case SVG internally converted to PNG before displaying in pages.
You could also use http://inkscape.org. --EugeneZelenko 16:50, 22 March 2006 (UTC)
From my (EugeneZelenko) talk page:
try coreldraw ? it is vectorized.
or try out http://www.uku.fi/~thassine/ghemical/ :-)Schmierer 16:35, 22 March 2006 (UTC)
I don't have CorelDRAW. I downloaded Inkscape, but it requires me to install X11 and I don't have the space for all that on my laptop. Gchemical only runs on Linux, which I don't have either. So I can't upload my images as SVG. Should I not upload any images anymore if I can only make PNGs?
Ben 17:53, 22 March 2006 (UTC)
Strange... Older version of Inkscape installed without problems on my Win98.
Sure, you could upload PNGs, if you could not create SVGs. I just wanted to let you know that SVG is better format and convince you to try other tools. Sorry, if I created too much troubles for you.
EugeneZelenko 14:43, 23 March 2006 (UTC)

## Image:Phosphorus-trichloride-3D-vdW.png

Hello, and thank your for sharing your files with Commons. There seems to be a problem regarding the description and or licensing of this particular file. Could you please resolve these problems, which are described on the page linked in above? Thank you.--Orgullomoore 21:39, 2 July 2006 (UTC)

## Image:Acetyl-CoA-2D-transparent.png

Hello. Thanks for putting chemical images in wikipedia. However, your structure of acetyl-CoA has incorrect stereochemistry of the secondary hydroxyl on the pantetheine arm. -Mike

## Image:Fentanyl-2D-skeletal.png

You added Category:Chemical structures to Image:Fentanyl-2D-skeletal.png but the note on this category sell: please try to insert your picture in the fitting (sub-)subcategory of Category:Chemical compounds and remove it here, afterwards.

Excuse me for my wrost english. -- Luigi Chiesa 07:25, 13 October 2006 (UTC)

## Nonmetal compound

The English Wikipedia doesn't define what is a “nonmetal compound”; so we could think that an imaginative user has made-up this expression. If you know that it has some meaning in chemistry, can you give me its precise definition?

Then, we'll discuss about the Commons category Category:Nonmetal compounds. --Juiced lemon 18:38, 16 December 2006 (UTC)

“A nonmetal compound is any chemical compound containing atoms of a w:nonmetal.”
With such definition, the category Category:Nonmetal compounds is useless. We can use directly Category:Chemical compounds. --Juiced lemon 19:36, 16 December 2006 (UTC)
I reverted your edits because we don't need to clutter up categories with the compounds categories for each element. For example, Category:Metal compounds contains only what is of special interest; so, the right way to find a compound which contains the metal element X is:
Category:Metals>Category:X>Category:X compounds.
You said that your edits were good, but I found some curious categorizations:
You must always check what you do. Don't worry, sometimes, I also make mistakes. --Juiced lemon 20:32, 16 December 2006 (UTC)
Na (en:Sodium) is not a nonmetal element
Cl (en:Chlorine) is not a nonmetal element
Therefore, NaCl is not a nonmetal compound. --Juiced lemon 21:12, 16 December 2006 (UTC)
Have you discovered something about chlorine that the English Wikipedia don't know? In that case, I'll annouce it in the village pump. --Juiced lemon 21:20, 16 December 2006 (UTC)
Sorry, but I refered only to the list of elements in en:Nonmetals which is incomplete. More, en:Periodic table#Standard periodic table and en:Template:PeriodicTablesFooter display Nonmetals as clearly separated from Halogenes and Noble gases.
I found also contradictory sources, like this one: [1]. I'll try to find reliable sources on the subject.
That doesn't change my opinion about Category:Nonmetal compounds. A category which contains near all chemical compounds is useless. --Juiced lemon 23:38, 16 December 2006 (UTC)
The category Category:Nonmetal compounds is for the chemical series, because it's the classification in the English Wikipedia. Your categorization is wrong and useless, so stop your edit war. We can discuss if you stop to revert my edits. --Juiced lemon 00:28, 17 December 2006 (UTC)

Hi Ben,

I just wanted to say that it was really nice to read your polite and considerate posts at Commons:Administrators'_noticeboard#Nonmetal_Compounds. It seems like you got a bit frazzled. It happens to most of us! But it's best to try and remember that our work here is nice, but ultimately still trivial (i.e.: not worth the stress). It's obvious to me that you have given some thought to the topic and for that reason alone, I hope you will not be discouraged from editing. Editors who care are our #1 asset. :) User:Juiced lemon is also an editor who cares, I think, but they are pretty straight-to-the-point and won't tolerate anything that doesn't have good reasoning behind it. These are not so bad things, but can be a bit unnerving at first.

Anyway just wanted to drop and say chin up, no harm no foul, etc, and I look forward to seeing your edits in the future. :) cheers, pfctdayelise (说什么?) 14:34, 18 December 2006 (UTC)

## ***.elpot.png

Hi Ben, I am a great fan of your beautiful molecular structure pictures. I have impressed by ones with colored decoration like Image:Carbon-monoxide-elpot.png. If some informations about their chemical (and/or physical) meanings are provided, we will able to enjoy them not only by thier cheerful appearance, but also by getting an insight into their property. I guess it may be a surface of the electrostatic potential plane or else, but uncertainly. Could you please tell us about thier details? Regards, --Calvero 14:24, 18 December 2006 (UTC)

Hi JP. The elpot (electrostatic potential) surfaces I occasionally upload are made in Wavefunction's Spartan Student Edition. The surface is equal electron density with an isovalue of 0.050 (not sure what the units are, I'll try to find out from the manual). The electrostatic potential is indicated by colour, but again, I'm not sure of the numerical values that each colour corresponds to. All I know for sure is that red regions are electron rich and blue are electron poor.
I'll let you know the proper numbers as soon as I find them.
Cheers
Ben 18:45, 18 December 2006 (UTC)
Thanks, I got it. --Calvero 14:12, 19 December 2006 (UTC)

## Reversions

You make the wrong choice about Commons. The aim of this project is to provide media files to other projects, not to bring informations about encyclopedic subjects, unless this information is useful to find media.

I already said you that halogens and noble gases were NOT nonmetals as a chemical series. The English Wikipedia choosed the classification by chemical series in en:periodic table and in the en:template:PeriodicTablesFooter, and we have not to use different, unsourced and confusing schemes.

I don't care if you are or not an expert in chemistry. We don't use a lot such skills in Commons. --Juiced lemon 18:23, 18 December 2006 (UTC)

The English Wikipedia is the reference for Commons. If you find something wrong in this encyclopedia, go there and correct it. Here, we are NOT writing an encyclopedia. --Juiced lemon 18:37, 18 December 2006 (UTC)

I disagree (Wikipedia is full of incorrect info, I improve it all the time), but it doesn't change the fact. Noble gases and halogens are nonmetals, you just misinterpreted the Wikipedia article.

Ben 21:14, 18 December 2006 (UTC)

I have asked a peer review for the en:Chemical series article in the English Wikipedia. As the categories structure in Commons matches the current contents of this article, please stop to modify this structure until completion of the review. I'll comply with the results of this peer review. --Juiced lemon 13:24, 19 December 2006 (UTC)
That's nonsense. First, the english wikipedia already says in multiple places that halogens are nonmetals. Second, any textbook whatsoever and any chemical dictionary will say the same. Itub 13:35, 19 December 2006 (UTC)

## Cool stuff!

I like the chemical images you're uploading. How did you make them? (Just curious).

Do you happen to work on wikibooks by any chance? These images could really come in handy if someone (possibly you?) were to work on an advanced chemistry book :) --SB_Johnny|talk|books 22:48, 16 January 2007 (UTC)

Hi Johnny - thanks! I don't work on any Wikibooks at the moment, but I could. Do you work on chemistry wikibooks? How I make my images is explained fully at w:User:Benjah-bmm27/MakingMolecules. If you want to make you own images, follow that link and ask me for any help you may want.
See you around
Ben 22:57, 16 January 2007 (UTC)
I actually work on a gardening book, but it's kind of cool when there are diagrams like that when I'm doing a page about various garden chemicals (from nitrate to glyphosate). I don't know if anyone's doing much work on the chemistry books these days. --SB_Johnny|talk|books 15:13, 17 January 2007 (UTC)

## PNG to SVG

Hey Ben. I'm making an amino-acid poster and your pictures are life-saving. For various reasons I couldn't work with PNG format, and after I saw your discussion page I have some ideas:

• I was trying to do "Bitmap Tracing" in Inkscape (which uses potrace) but it requires multiple scans and the quality is not so good even after 20 scans.
• My next shot is Adobe's Streamline. I'll let you know the outcome.
• If Elements won't let you export to SVG, maybe the complete version of Photoshop may..?
• Or maybe you can save as *.ai (Illustrator's format), which is also a vector format.

Thanks a bunch, Mintz l 10:26, 20 January 2007 (UTC)

Hi Mintz. I've been through some of these options. The full version of Photoshop doesn't export to SVG. I've downloaded a free 30-day trial of Illustrator. Shall I send you the amino acid images you need in SVG or .ai format?
Cheers
Ben 14:21, 20 January 2007 (UTC)
Hope you guys don't mind me just randomly entering your conversation, but I've been using the free program BKchem for producing SVG chemical diagrams and it's really handy. It runs on Windows, Linux and MacOS, and is Python-based so can probably run on other OSes as well. It doesn't trace PNG files but I've found it quite quick and easy constructing structures from scratch since it's built specifically for that purpose. Bryan Derksen 06:32, 22 February 2007 (UTC)
Oh, and for further editing I recommend use Inkscape. It opens the SVG files produced by BKchem without any problems and has a lot of non-chemical-related editing tools for doing further work with. Also free software. :) Bryan Derksen 06:36, 22 February 2007 (UTC)

## Image:Anethole-structure-skeletal.svg

 Image deletion warning Image:Anethole-structure-skeletal.svg has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this image, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. If the file is up for deletion because it has been superseded by a superior derivative of your work, consider the notion that although the file may be deleted, your hard work (which we all greatly appreciate) lives on in the new file. In all cases, please do not take the deletion request personally. It is never intended as such. Thank you!

Warddr 08:16, 10 March 2007 (UTC)

## Image:Carboxylic-acid.png

 Image deletion warning Image:Carboxylic-acid.png has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this image, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. If the file is up for deletion because it has been superseded by a superior derivative of your work, consider the notion that although the file may be deleted, your hard work (which we all greatly appreciate) lives on in the new file. In all cases, please do not take the deletion request personally. It is never intended as such. Thank you!

This is an automated message from BryanBot. 02:24, 25 March 2007 (UTC)

## Sinigrin

Hey there! I noticed that your image of the structure of Sinigrin (Image:Sinigrin-2D-skeletal.png, Version 20070327192303) featured a cross between the C and the N. I've assumed that this is a mistake, and that it was meant to be a C=N double bond, and corrected the image. If this is wrong, please revert my change and explain on the image description what the C×N means. Thanks. Smurrayinchester 12:47, 28 March 2007 (UTC)

Hi Smurray! The cross was intentional - it means a double bond that could be either cis or trans. See en:Geometric isomerism for details if you haven't come across cis/trans isomers before. When I first saw this crosssed double bond notation, I was confused, but somehow I found out what it meant. I think I asked the author. I'll revert your change if that's OK.

Ben 16:59, 28 March 2007 (UTC)

Alright, thanks. I'd never seen that notation for cis/trans before. Smurrayinchester 10:16, 1 April 2007 (UTC)

Ben, could you please link to a (IUPAC) page or file where the use of this crossed double bond notation is documented? I am interested in learning more about it, but was not able to find such a documentation. Thanks. --Leyo 16:08, 6 January 2010 (UTC)

Here, page 1961 - it says the crossed double bond notation is unnaceptable - the IUPAC way of doing it is to use wavy bonds.
Hope this helps.
Ben (talk) 17:26, 6 January 2010 (UTC)
Yes, it does. Thanks a lot. --Leyo 18:05, 6 January 2010 (UTC)

## Image:Phosphatidylcholine-2D-skeletal.svg

Hello Benjah-bmm27, I just noticed that there's a mistake in the image: The glycerol is missing a carbon atom. Greets, --NEUROtiker 22:14, 19 April 2007 (UTC)

I now marked the image with Template:Disputed chem. Greets, --NEUROtiker (talk) 10:48, 19 July 2008 (UTC)

Hi Neurotiker, thanks for the heads up.

I've lost my SVG abilities since I made this image, so it can be deleted.

Cheers

Ben (talk) 11:42, 23 July 2008 (UTC)

## Thanks!

I came across your diagram on the Wikipedia melanin article, and I just wanted to say, I really appreciate all your hard work and sharing with the world --- even if you're not using SVG yet :) 200.73.173.188 (Kragen on Wikipedia) 05:22, 1 May 2007 (UTC)

## Manganese carbonate

Hello, I think there is something wrong in your photograph. Your manganese(II) carbonate is at least partly oxydised to Mn(III). All the other |manganese(II) compounds in the category manganese compounds are pale pink, and this can be rationalised according to the electronic properties of manganese. Federix 08:35, 17 May 2007 (UTC)

You know what? I cam here 3 years later to make exactly the same comment, and see somebody else has. MnCO3 is indeed pale pink. Your sample must be really crappy to look that bad. Could you please fix or remove it? Sbharris (talk) 22:21, 7 July 2010 (UTC)

## Dibenzofurans

Hi Ben. Could you please create on image for dibenzofurans the same way you did for dibenzodioxins? Thanks. --Leyo 22:34, 25 May 2007 (UTC)

Done!
Cheers
Ben 00:37, 26 May 2007 (UTC)
Great, thanks a lot. I have included the image here and here. --Leyo 03:18, 26 May 2007 (UTC)

## Image Tagging Image:Nitrogen-trifluoride-2D-dimensions.png

 This media may be deleted.

Thanks for uploading Image:Nitrogen-trifluoride-2D-dimensions.png. I notice the image page currently doesn't specify who created the content, so the copyright status is unclear. If you have not created this media yourself then you need to argue that we have the right to use the media on Wikimedia Commons (see copyright tagging below). If you have not created the media yourself then you should also specify where you found it, i.e., in most cases link to the website where you got it, and the terms of use for content from that page. If the content is a derivative of a copyrighted work, you need to supply the names and a licence of the original authors as well.

If the media also doesn't have a copyright tag, then you must also add one. If you created/took the picture, audio, or video then you can use {{self|cc-by-sa-2.5}} to release it under the Creative Commons Attribution-ShareAlike license or {{PD-self}} to release it into the public domain. See Commons:Copyright tags for the full list of copyright tags that you can use.

Note that any unsourced and untagged images will be deleted one week after they have been uploaded, as described on criteria for speedy deletion. If you have uploaded other media, please check that you have specified their source and copyright tagged them, too. You can find all your uploads using the Gallery tool. Thank you. Siebrand 00:05, 9 June 2007 (UTC)

## Thanks for the photographs

Hi Ben,

I actually liked your photographs of chemical compounds. In fact, while you can find descriptions and structures or formulas for many chemicals on the net, photographic representations are quite rare.

Thanks for putting them in the commons here.

(Being a chemist myself who has traded lab work for producing software, your pictures reminded me of former times.)

--Krakatit 11:01, 20 June 2007 (UTC)

## Image Tagging Image:Ethenol-2D.png

 This media may be deleted.

Thanks for uploading Image:Ethenol-2D.png. I notice the image page currently doesn't specify who created the content, so the copyright status is unclear. If you have not created this media yourself then you need to argue that we have the right to use the media on Wikimedia Commons (see copyright tagging below). If you have not created the media yourself then you should also specify where you found it, i.e., in most cases link to the website where you got it, and the terms of use for content from that page. If the content is a derivative of a copyrighted work, you need to supply the names and a licence of the original authors as well.

If the media also doesn't have a copyright tag, then you must also add one. If you created/took the picture, audio, or video then you can use {{self|cc-by-sa-2.5}} to release it under the Creative Commons Attribution-ShareAlike license or {{PD-self}} to release it into the public domain. See Commons:Copyright tags for the full list of copyright tags that you can use.

Note that any unsourced and untagged images will be deleted one week after they have been uploaded, as described on criteria for speedy deletion. If you have uploaded other media, please check that you have specified their source and copyright tagged them, too. You can find all your uploads using the Gallery tool. Thank you. Siebrand 11:27, 25 June 2007 (UTC)

## Please give images good descriptions

I noticed you've uploaded one or more images and I thought I should turn your attention to a common error.
Please give some thought to writing a good description of uploaded images. This ensures that they can be used in more than one way. It also helps those that review and improve categories do a better job, which also ensures that images will get used in novel and interesting ways. Thanks, and happy editing! Siebrand 11:27, 25 June 2007 (UTC)

 This media may be deleted.

Thanks for uploading Image:Lead-diiodide-3D-balls.png. I notice the image page currently doesn't specify who created the content, so the copyright status is unclear. If you have not created this media yourself then you need to argue that we have the right to use the media on Wikimedia Commons (see copyright tagging below). If you have not created the media yourself then you should also specify where you found it, i.e., in most cases link to the website where you got it, and the terms of use for content from that page. If the content is a derivative of a copyrighted work, you need to supply the names and a licence of the original authors as well.

If the media also doesn't have a copyright tag, then you must also add one. If you created/took the picture, audio, or video then you can use {{self|cc-by-sa-2.5}} to release it under the Creative Commons Attribution-ShareAlike license or {{PD-self}} to release it into the public domain. See Commons:Copyright tags for the full list of copyright tags that you can use.

Note that any unsourced and untagged images will be deleted one week after they have been uploaded, as described on criteria for speedy deletion. If you have uploaded other media, please check that you have specified their source and copyright tagged them, too. You can find all your uploads using the Gallery tool. Thank you. Siebrand 11:28, 25 June 2007 (UTC)

 This media may be deleted.

Thanks for uploading Image:Lead-diiodide-3D-ionic.png. I notice the image page currently doesn't specify who created the content, so the copyright status is unclear. If you have not created this media yourself then you need to argue that we have the right to use the media on Wikimedia Commons (see copyright tagging below). If you have not created the media yourself then you should also specify where you found it, i.e., in most cases link to the website where you got it, and the terms of use for content from that page. If the content is a derivative of a copyrighted work, you need to supply the names and a licence of the original authors as well.

If the media also doesn't have a copyright tag, then you must also add one. If you created/took the picture, audio, or video then you can use {{self|cc-by-sa-2.5}} to release it under the Creative Commons Attribution-ShareAlike license or {{PD-self}} to release it into the public domain. See Commons:Copyright tags for the full list of copyright tags that you can use.

Note that any unsourced and untagged images will be deleted one week after they have been uploaded, as described on criteria for speedy deletion. If you have uploaded other media, please check that you have specified their source and copyright tagged them, too. You can find all your uploads using the Gallery tool. Thank you. Siebrand 11:28, 25 June 2007 (UTC)

## Image Tagging Image:Cambridge-TL-rising-5.jpg

 This media may be deleted.

Thanks for uploading Image:Cambridge-TL-rising-5.jpg. I notice the image page currently doesn't specify who created the content, so the copyright status is unclear. If you have not created this media yourself then you need to argue that we have the right to use the media on Wikimedia Commons (see copyright tagging below). If you have not created the media yourself then you should also specify where you found it, i.e., in most cases link to the website where you got it, and the terms of use for content from that page. If the content is a derivative of a copyrighted work, you need to supply the names and a licence of the original authors as well.

If the media also doesn't have a copyright tag, then you must also add one. If you created/took the picture, audio, or video then you can use {{self|cc-by-sa-2.5}} to release it under the Creative Commons Attribution-ShareAlike license or {{PD-self}} to release it into the public domain. See Commons:Copyright tags for the full list of copyright tags that you can use.

Note that any unsourced and untagged images will be deleted one week after they have been uploaded, as described on criteria for speedy deletion. If you have uploaded other media, please check that you have specified their source and copyright tagged them, too. You can find all your uploads using the Gallery tool. Thank you. Siebrand 11:28, 25 June 2007 (UTC)

## Image Tagging Image:Cambridge-TL-turntable.jpg

 This media may be deleted.

Thanks for uploading Image:Cambridge-TL-turntable.jpg. I notice the image page currently doesn't specify who created the content, so the copyright status is unclear. If you have not created this media yourself then you need to argue that we have the right to use the media on Wikimedia Commons (see copyright tagging below). If you have not created the media yourself then you should also specify where you found it, i.e., in most cases link to the website where you got it, and the terms of use for content from that page. If the content is a derivative of a copyrighted work, you need to supply the names and a licence of the original authors as well.

If the media also doesn't have a copyright tag, then you must also add one. If you created/took the picture, audio, or video then you can use {{self|cc-by-sa-2.5}} to release it under the Creative Commons Attribution-ShareAlike license or {{PD-self}} to release it into the public domain. See Commons:Copyright tags for the full list of copyright tags that you can use.

Note that any unsourced and untagged images will be deleted one week after they have been uploaded, as described on criteria for speedy deletion. If you have uploaded other media, please check that you have specified their source and copyright tagged them, too. You can find all your uploads using the Gallery tool. Thank you. Siebrand 11:28, 25 June 2007 (UTC)

Hi Ben, I saw one of your removals of a no source tag on my watch list. I reverted that, because we need explicit own work declarations. Then I started checking your uploads and see why you would do what you did and why it was incorrect. Please start using the template {{information}} to document your images. Source, author, and a licese are mandatory. Simply slapping is not enough. I would advise you to check all your upload and fix this where needed; I have not tagged them all. Thank you for your consideration. Cheers! Siebrand 11:31, 25 June 2007 (UTC)

Hi Siebrand. The reason I've removed no source tags is as follows. The rules state that [the need to explicity state a source] obviously does not apply if the material is first published on the commons and the uploader is the author of the material.
All my images are first published on commons and I am the author and uploader. The {{PD-user}} tag implies I am the author and uploader - why is it necessary to repeat this information?
I hate using {{information}} because it takes so long to fill out individually for each image. If I'm forced to do so, I might not contribute to the commons any more, because it's such a hassle, and unnecessary.
Ben 13:34, 25 June 2007 (UTC)
Hi Ben. A source is always required. Slapping a {{self}} template on a file does not qualify as such. In case a file was created by the uploader, adding 'I made this myself', 'own photo', or 'own work' as text suffices as source. Please understand that Wikimedia Commons is a value added media repository: your contributions, with minimal required information, are welcomed and appreciated. However, if you truly value our project and our goals, please try to add as much value as possible to your contributions. The template {{information}} helps to make the provided descriptions as accessible as possible. Cheers! Siebrand 16:20, 25 June 2007 (UTC)
OK, point taken, but why does the page I linked to say as source is not always required, whereas you say it is? Who am I to believe?
Ben 16:46, 25 June 2007 (UTC)
To be honest, I hadn't checked the page you referred to. I'll go and check now, change and/or comment here if needed. Cheers! Siebrand 17:14, 25 June 2007 (UTC) P.s. thanks for adding the information. I know it's a lot of work.
It's not too much work for the images you list, but for the thousands of images I've uploaded in the past, it'll take ages! Is there a way of automating the process somewhat?
Ben 17:15, 25 June 2007 (UTC)
You could use AutoWikiBrowser to automatically show you pages in an edit screen, provided you have Windows and use Internet Explorer. That would save you a lot of clicking. I could add the information template (empty) with a but to all your uploads, but that wouldn't really help, I guess. I tagged just a few images to show you. What was the saying? Let sleeping dogs lie? If you do a few every day, you might finish eventually ;)
I have made a small clarification to the page you referenced. See here. Cheers! Siebrand 17:19, 25 June 2007 (UTC)

## Image:CarltonHighStreet.jpg

Hi, I am currently putting images from Category:Towns and villages in England into specific categories for the respective counties. As there are quite a few Carltons in England, I wondered whether you could tell me of which one this particular image was taken. Best regards, --rimshottalk 14:33, 9 July 2007 (UTC)

Hello Rimshot, thanks for asking. This image is from Carlton, Bedfordshire - MK43 7##.
Cheers
Ben 15:48, 9 July 2007 (UTC)
Thanks, --rimshottalk 16:13, 9 July 2007 (UTC)

## Thanks

Ben, I just wanted to say thanks for all the chemistry illustrations you've created for various articles. I went to Chemical polarity while creating a link to it for another article I was editing. I was struck by how nice the article looked — largely due to your contribution. Upon visiting your user page, I was then struck by how prolific you’ve been with so many fine-looking illustrations. Contributors of illustrations are the unsung heros of Wikipedia. Illustrations take so much time to create but enhance articles so very much. The “Tireless Contributor” Barnstar above, is specifically for tireless Wikipedians who contribute an especially large body of work. Greg L (my talk]) 19:55, 29 July 2007 (UTC)

Thank you very much! It's great that you appreciate my contributions. I really enjoy making them, so everyone wins!
See you around
Ben 20:30, 29 July 2007 (UTC)

## Image:Hydroxide-lone-pairs-2D.png

There is an SVG version of this file available. Please review to see if it is a correct. --DoSiDo 00:46, 24 September 2007 (UTC)

Yep, no problems there. I personally prefer sans serif fonts, particularly Arial, in chemical structures, but that's just me.
Ben 07:06, 24 September 2007 (UTC)
I replaced the font by Arial. The rendering was different in Inkscape vs. rsvg. I will replace the png. Thanks. --DoSiDo 23:13, 24 September 2007 (UTC)

Good work.

Ben 15:47, 25 September 2007 (UTC)

## Image:Ammonia-2D-dimensions.png

There is an SVG version of this file available. Please review to see if it is a correct. Thanks. --DoSiDo 02:36, 14 October 2007 (UTC)

Hi DoSiDo. The SVG version is technically accurate, but the font is a little bit small for use in chemboxes, and the dashed bond is wedged, which is non-standard. These are only minor things though, more a matter of style.
Ben 10:15, 14 October 2007 (UTC)
Hi there, I have a comment on drawing an away-from-plain bond. In the 1996 IUPAC recommendation, the preferred was short parallel lines (non-wedged) as mentioned above. However in the newer version, 2006 recommendation, hashed wedged bonds became preferred one. Anyway minor thing, just for a reference. --Calvero 15:53, 15 October 2007 (UTC)
Thanks, Calvero. OK, so keep the wedged bonds but increase the font size a little and you've got yourself a beaut!
Ben 16:59, 15 October 2007 (UTC)
OK. I increased the font. I will replaced the image. There is currently a problem with the Check Usage script. --DoSiDo 00:57, 17 October 2007 (UTC)

Hi Ben, thanks for the category fix. If it's not too much trouble, would you mind whipping up a skeletal structure? I can't get it right on ChemSketch. Best, Fvasconcellos 20:36, 19 October 2007 (UTC)

Hey, thanks—I'd missed that. I thought I'd have time to tell you that Smokefoot raised some issues on the accuracy of the ball-and-stick model above, so I've decided not to add it to the article...it seems you were too fast :P Thanks again, Fvasconcellos 22:50, 24 October 2007 (UTC)

No problem!

If only electronic versions of all crystal structures were available free online for everyone, life would be sweet.

Ben 13:07, 25 October 2007 (UTC)

## Image:Azo-group-2D-flat.png

 Image deletion warning Image:Azo-group-2D-flat.png has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this image, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. If the file is up for deletion because it has been superseded by a superior derivative of your work, consider the notion that although the file may be deleted, your hard work (which we all greatly appreciate) lives on in the new file. In all cases, please do not take the deletion request personally. It is never intended as such. Thank you!

Karelj 15:33, 18 November 2007 (UTC)

## Image:Cyclobutane-3D-balls.png

Hi, I have a comment on the above picture. The structure of cyclobutane is reported to be non-planar, but somewhat bent. The C-C-C-C dihedral angle is 31° (see JACS 1992, 114, 7684-7, DOI: 10.1021/ja00046a012 for details). So it would be nice to represent in the picture so that the bent structure is more easily recognized. --Calvero 15:13, 19 November 2007 (UTC)

Done, enjoy!
Ben 21:29, 19 November 2007 (UTC)
Great. Thanks for quick responce :) --Calvero 13:57, 20 November 2007 (UTC)

## Image:Hydrogen-sulfide-3D-vdW.png

Hi, Benjah-bmm27. Please, if possible, try to add a description to this image, including author, content, source, and date. Regards --Manwë 20:42, 22 November 2007 (UTC)

## Image:Chloroprene-3D-vdW.png

Please tell what tool you used to make this diagram (and if it's freely downloadable). I have been using Discovery Studio Visualizer to make such diagrams, but the results are not nearly the quality you get in your 3D molecule diagrams (see image:isopropylChloride.png). Please leave your answer at on my talk page. Thanks. Karl Hahn 13:01, 26 December 2007 (UTC)

Much obliged for your help. I just went through all the choices in Edit -> Preferences in DS Visulaizer, and I couldn't find any adjustment for rendering quality. How do I adjust this to "ultra??" Karl Hahn 20:42, 26 December 2007 (UTC)
Found it. Thanks. I feel the same kind of dumb now as when I'm looking for my cellphone and my wife tells me, "It's on the table, right where you're looking at!" I only thought to click the indents under "3D Window", but not "3D Window" itself. :-b Karl Hahn 21:20, 26 December 2007 (UTC)

## L-cysteine?

Hi Ben, I have been looking over this your image of cysteine on wikipedia and can not understand why your image is an L-cysteine. I have checked again and again and can not come to the same conclusion. I believe that the image must be that of an R-cysteine. Please check it over.

Thanks Dave

Hi Dave
I've checked the images at en:cysteine and I cannot see a problem. Both 3D models appear to be L-cysteine.
What made you think they're R-cysteine?
Cheers
Ben 22:08, 28 December 2007 (UTC)

## THF

Hi again. The first model was one I arrived at before I knew how to use the "Clean geometry" feature of DSV. So it was only my own approximation that I had created by piecing together tetrahedral units. The second version was starting from a planar ring and then applying DSV's "Clean geometry" function (with the hydrogens already attached). Once I figured out how to use the CG feature, the first thing I did was apply it to cyclohexane. To my delight, from the planar ring it took it right to the chair config. With a little hand-perturbation to the planar version I was able to get the twist config. And only by using a starting config very close to the boat config was I able to retain the boat after pressing CG. This, of course, parallels the actual stability (or lack thereof wrt the boat) of the three configs, so I was happy at that point that I knew what I was doing. At any rate, I believed then that the CG function would more accurately reproduce 3D structure than my appealing to my own sense of geometry. I have also experimented with DSV's rendering of double-bond geometry by drawing ClHC=C=CClH. This structure has no asymmetric carbons, but is chiral nevertheless. The mental 3D model of an aliphatic carbon that has always worked for me is to imagine the unpaired electrons as the vertices of a tetrahedron, with a single bond being shared vertex, double bond a shared edge, and triple bond a shared face. DSV does show chirality of the example compound above, but is unclear as to the geometrical relationship of the two double bonds (which provide the 90 degree twist that makes this thing chiral). My tetrahedron model does correctly render the twist and illustrates why it must be that way. So that is one criticism I have of DSV. Another (purely technical gripe) is that if I have two molecules displayed, I haven't yet figured out how to rotate one and not the other. I still haven't yet attempted anything to do with coordinated metals, or with peptides, or with crystals. But I'll get to that.

BTW I was unable to access the diagram at http://www.benjamin-mills.com/THF.pdb.

One more question for you. Is there any freely downloadable equivalent to ChemDraw that you know of? I cannot justify spending ₤₤₤ on it as my writing chem material is strictly a hobby. I am experimenting now using InkScape to cut and paste elements from existing chemical diagrams to produce my own, but that is clearly a poor way to do it. Karl Hahn 16:22, 28 December 2007 (UTC)

I learn something new every day. It had never occurred to me until now that THF had more than one conformer. So indeed both versions of the 3D-plot that I uploaded are correct. I can't find anything in my textbooks about THF conformers, so my guess is that the energy hill that separates them is low enough so that the two conformers are not separable (or separable with only great difficulty at low temp -- I imagine some really exotic procedure like recystallizing from liquid hydrogen solution). Karl Hahn 22:57, 28 December 2007 (UTC)

## AXE / VSEPR images

Thanks for the great Category:AXE method images. I only know it under the term VSEPR and therefore collected them at this page so that other language wikipedians can find it more easily. They are now used at German Wikipedia: de:VSEPR-Modell. --Matt 13:12, 1 January 2008 (UTC)

Fantastic work!
Happy new year!
Ben 16:20, 1 January 2008 (UTC)

## Replacement of replaced chemical structures that do not comply with the guidelines

Hi Ben. You might give a comment here (see also here). Thanks. --Leyo 12:48, 9 January 2008 (UTC)

## Image:Acetyl-group-2D-skeletal.png

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This is an automated message from DRBot. (Stop bugging me!) 07:01, 13 January 2008 (UTC)

## Image:Carboxylic-acid-skeletal.png

 Image deletion warning Image:Carboxylic-acid-skeletal.png has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this image, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. In all cases, please do not take the deletion request personally. It is never intended as such. Thank you!

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## Image:Hydrogen-fluoride-solid-2D-dimensions.png

Hi, your scheme is wrong! The distance of H-F is 0.95 Å that is 95 pm - not 0.95 pm, as you wrote. 1 Å = 10-10 m, and 1 pm = 10-12 m. Could you correct the image? Best wishes, Chrumps 00:49, 27 February 2008 (UTC)

Yes indeed, thanks for reminding me - just a typo.
All better
Ben 04:17, 27 February 2008 (UTC)

## PD-chem / PD-self solution

I've given the situation some thought. I still maintain that the images in question are ineligible for copyright, however, I also know the community is generally fine with these images being tagged with {{PD-self}} in place of a PD-ineligible tag. To some, this isn't the best practice, but to most, this is acceptable. Before undertaking the task of having my bot apply {{PD-chem}} to simple chemical structure images, I assumed this was a non-controversial issue—what the community wanted, even. This is why I set the bot to convert tags that weren't PD-ineligible to start with, in addition to those that were. I didn't see any difference and thought it would better to be consistent. Since a few of you have stress concern with my actions, I guess I was wrong. I apologize. I am planning to revert any changes my bot made to your images (also Physchim62's and Edgar181's images along with anyone else who wishes me to do so). Before I do this, I want to make this is what you want and if there's anything else you would like my bot to do. Cheers, Rocket000 15:42, 3 April 2008 (UTC)

Thanks for the message, Rocket. No need to apologize, it's a difficult area. I just wanted the opportunity for everyone, especially the chemists, to discuss what we think the law says, before big changes went ahead. I'll re-PD my images, because some of them could be converted to {{PD-user|Benjah-bmm27}}, but thanks for the offer.
Cheers
Ben 15:52, 3 April 2008 (UTC)
Are you sure? I can have my bot tag them as {{PD-user|Benjah-bmm27}}. And I understand, I jumped the gun on this one. Rocket000 16:46, 3 April 2008 (UTC)

...this? You contributed thousands of chemical structures, you are (re-)categorizing, tidying and so on. I think these additional functions would help you to do all these things and your chances of success would IMHO be better than they were on en-WP. So, what do you think? --Leyo 15:40, 4 April 2008 (UTC)

## Re:Chemical images

1st Tx. 2nd:

1. I don't spake German
2. Image:Bentazepam.svg was my 1st I intend to leave some with space, but how much?
3. Image:Azlocillin.svg is identical to Image:Azlocillin.png
4. Image:Bentazepam.svg easy fix, i just didn't notice.

--IngerAlHaosului 17:09, 6 June 2008 (UTC)

"Hi, IngerAlHaosului,

I noticed you've been uploading a few chemical structures lately. Some of your SVGs have minor problems: wonky bond lines and misaligned atom labels (Image:Bentazepam.svg), absence of expicity hydrogen atoms attached to heteroatoms (Image:Azlocillin.svg) and lack of a whitespace border around the image (Image:5-Azacytidine.svg).

You may wish to consult en:Wikipedia:WikiProject Chemistry/Structure drawing for the settings preferred by the chemistry community at Wikipedia; see also de:Wikipedia:Wie erstelle ich Strukturformeln? for German preferences. The German and English Wikipedias are the two most prolific users of chemical structures, so if you want your images to be most useful to the project, you'd do well to conform to their guidelines.

If you need any help or advice on how to make perfect chemical SVGs, contact User:Fvasconcellos, User:NEUROtiker, User:Leyo, User:Slashme or User:Su-no-G.

Thanks for you efforts, both in creating images and in maintaining commons.

Cheers

Ben 12:28, 5 June 2008 (UTC)"

Hi again,
1. Sorry, just for reference.
2. Leave a border of 5% of the original image width either side (so a 1000 x 800 px image will have a border of 50 px all the way around, i.e. it will be 1100 x 900 px)
3. Beware of copying images that do not conform to guidelines, either. Image:Azlocillin.png is one such image - lack of explicit heteroatoms is almost never seen in professional publications, so we shouldn't be doing it. Only User:BorisTM omits them, and I'm not sure even he does it any more.
4. Cool
Hope this helps,
Looking forward to more of your work
Cheers
Ben 17:36, 6 June 2008 (UTC)
About heteroatoms and similar stuff, i am a metallurgy student not a chemist so if the source png ,jpg, gif, etc are incorrect then the svg i create will be equally incorrect. The reason i started converting chemical structures to svg is because the graphics file itself is relatively easy to convert. I also do electronic diagrams and alphabet images for the same reason, their easier then lets say a insignia. --IngerAlHaosului 10:04, 7 June 2008 (UTC)
In that case it may be better to leave chemistry diagrams to chemists, unless you're sure the image is acceptable.
See you around
Ben 11:50, 7 June 2008 (UTC)

## Disputed chemical diagrams

Hi Ben, I have been going through Category:Disputed_chemical_diagrams and nominating for deletion images that have been there for more than month. I noticed that a couple of yours, Image:Phosphatidylcholine-2D-skeletal.svg and Image:THC-3D-balls.png, are in that category. Do you wish to keep and/or correct either of them? Otherwise they will eventually get deleted. Cheers, Edgar181 (talk) 23:14, 22 July 2008 (UTC)

Hi Ed, thanks for reminding me. The THC image is probably best just renamed to 8-hydroxy THC - shall I reupload under a new name and have the current one deleted?
The phosphatidylcholine one can be deleted - I'm sure someone more biological and better with SVG than me (e.g. User:Fvasconcellos, User:NEUROtiker) can do the honours, if a replacement is required.
Cheers
Ben (talk) 11:25, 23 July 2008 (UTC)
For the THC image it's probably best to reupload the same file with a different name, then tag the old one with {{bad name}} and someone will delete it. For the phosphatidylcholine, just add {{speedydelete}} and specify you're the uploader and that you don't want to keep it. Thanks. Edgar181 (talk) 12:49, 23 July 2008 (UTC)
I just noticed that there is one more: Image:Fucitol-2D-skeletal.png. Edgar181 (talk) 13:08, 23 July 2008 (UTC)
All done, thanks for the notification and tips.
See you around
Ben (talk) 13:29, 23 July 2008 (UTC)

## Hydrogen compounds

Hi Ben, thanks for the correction, and you're right i have nothing with chemistry, that part i copycat from the en cat system, sort of workaround. Cheers Mion (talk) 20:08, 4 August 2008 (UTC)

No worries, thanks for your great work categorising hydrogen-related topics. Much easier to browse now!
Take it easy
Ben (talk) 20:10, 4 August 2008 (UTC)
Can i ask you something ? why didn't they just copy the EN cat system to commons, we can even follow EN maintenance on the cat system in realtime on commons, at first sight only 20% of the cat structure is present. Mion (talk) 21:26, 4 August 2008 (UTC)
I'm not sure. Is such a thing possible?
Ben (talk) 21:28, 4 August 2008 (UTC)
yes, the time you save for not having to make the directory tree the second time can be used to write bots to maintain the directory or manually walk through them. Mion (talk) 21:34, 4 August 2008 (UTC)
Isn't it too late now, though, as EN and Commons each have categories that the other does not?
Ben (talk) 21:37, 4 August 2008 (UTC)
The extra categories on commons stay as they are, because they don't exist on EN, only the the directories that exist in EN but not on commons are copied to commons, in the same run interwiki links to the EN cat are attached to keep the connection and shoot the commons cat template in. the result a lot of empty directories, but now bots like siebot can fill the directories. Mion (talk) 21:54, 4 August 2008 (UTC)
Sounds good, but how do you do it? With bots?
Ben (talk) 22:07, 4 August 2008 (UTC)
If commons agrees on it, I think a one way synchronizing of part of the databases tables (we have to make a request if thats possible) would be the quickest, with a bot its also possible but takes longer. but maybe this is discussed long ago and dismissed ? Mion (talk) 22:21, 4 August 2008 (UTC)
I don't know if this has ever been discussed. Try searching Commons, that may be informative.
Ben (talk) 23:15, 4 August 2008 (UTC)
ok, i will, thanks, and its enough for today. cheers. Mion (talk) 23:18, 4 August 2008 (UTC)
FWW, i found a discussion about on en:User:Fabartus/interwiki categorization tagging. Cheers Mion (talk) 10:30, 25 September 2008 (UTC)

## Image:Flunitrazepam-from-xtal-3D-balls.png

Hi Ben. Do you think you could whip up a model of bromazepam using data from the same paper you used to create the image above? Best, Fvasconcellos (t·c) 20:14, 10 August 2008 (UTC)

Yep, no problem at all. Top of the list!
Ben (talk) 21:07, 10 August 2008 (UTC)

Done - available at Category:Bromazepam.

Cheers

Ben (talk) 00:53, 11 August 2008 (UTC)

Thanks! Fvasconcellos (t·c) 12:59, 11 August 2008 (UTC)

Hi Ben, I noticed that the structure you created Image:Tacrolimus-Armistead-2D-skeletal.png is missing one stereocenter (on the piperidine ring). Do you think you can add it? Thanks. Edgar181 (talk) 18:11, 14 August 2008 (UTC)

Done, thanks for the heads up.
Ben (talk) 19:09, 14 August 2008 (UTC)

## TUSC token 3579c384522441e50a5c13f0094cf9f1

I am now proud owner of a TUSC account!

## TUSC token 6d47339a07694bd0f356c9812263ff19

I am now proud owner of a TUSC account!

## One more request

Hi again, Ben:) Could you track down a crystal structure of metformin and make a ball-and-stick model? I found this on a quick search, maybe you can work with it. Best as always, Fvasconcellos (t·c) 02:07, 18 August 2008 (UTC)

All done, it's at Image:Metformin-from-xtal-3D-balls.png. Had to guess the positions of the hydrogen atoms, though.
Cheers
Ben (talk) 22:58, 18 August 2008 (UTC)

## Mecoprop-2D-skeletal.png

Hi Ben, Can you take a look at Image:Mecoprop-2D-skeletal.png? It appears to be an incorrect structure when compared to this PubChem link. Can you please correct it? Thanks. Edgar181 (talk) 15:40, 8 September 2008 (UTC)

This time, it looks like PubChem is correct. At least, the structure in GESTIS is the same. --Leyo 16:26, 8 September 2008 (UTC)

Yep, thanks guys. I can't remember where I got this structure from, but it is definitely wrong: Acta Cryst. (1980). B36, 992-994 . I'm in the process of updating it now.

Cheers

Ben (talk) 16:38, 8 September 2008 (UTC)

Thank you. Edgar181 (talk) 20:28, 8 September 2008 (UTC)

## Two images of yours

Hi,

I have been using two of the images you created Image:Cubane-3D-balls.png and Image:Hexaaquacopper(II)-3D-balls.png at en:group (mathematics). In a FAC, there is a reviewer wishing that the author, i.e. you, is explicitly stated and that also an explanation of the images is given. Would you be so kind and do this? (Sorry for this, I myself would not be so picky). Thanks, Jakob.scholbach (talk) 19:12, 12 September 2008 (UTC)

Done, thanks for letting me know, hope this is what's required.
Cheers!
Ben (talk) 23:25, 12 September 2008 (UTC)

## Image:GV-2D-skeletal.png

Hi Ben. Could you please check this structure with PubChem please? IMHO an oxygen atom is missing. --Leyo 18:33, 22 September 2008 (UTC)

Hi Leyo, thanks for letting me know. I know PubChem can be unreliable at times, so I searched for further information and found it at Google Books. I've updated the structure accordingly, although it will take a little while to fix the 3D structure as I'm waiting for my PC to arrive at uni.
Thanks again
Ben (talk) 18:47, 22 September 2008 (UTC)
Wow, that was fast! Thanks. --Leyo 19:11, 22 September 2008 (UTC)

## Category:Fluoroquinolone antibiotics

Hey Ben. Do you think there are crystal structures available for any fluoroquinolones? I'd love to have a few images available to add to their respective WP articles, if possible. Best, Fvasconcellos (t·c) 20:39, 12 October 2008 (UTC)

Hi FV,
I had a look with the the IUCr search tool and there are quite a few fluoroquinolone structures available. I'll make a few this week.
Are there any particularly representative or interesting members of the group that you think deserve a structure?
Ben (talk) 22:41, 12 October 2008 (UTC)
Hmm. Levofloxacin, moxifloxacin, and ciprofloxacin should get one if possible—they're the most popular ones ;) Thanks for the quick reply! Fvasconcellos (t·c) 23:14, 12 October 2008 (UTC)
By the way, it would be nice if you could make them in this orientation—they're almost always drawn this way in the literature. Best, Fvasconcellos (t·c) 23:16, 12 October 2008 (UTC)
Hi again FV,
I've made a model of ciprofloxacin, in the orientation you linked to. Would you be able to create a new SVG skeletal formula of ciprofloxacin that matches my 3D image? The existing 2D image, Image:Ciprofloxazin.svg, is oriented differently, which will confuse some readers of the article. The molecule is also zwitterionic - I know we tend to ignore this for amino acids and draw the molecule without charges, but it's very difficult to do this with 3D structures since there is no data on the structure of the non-zwitterionic molecule.
Cheers
Ben (talk) 19:55, 14 October 2008 (UTC)
Thanks! I'll whip up a new 2D structure as soon as I can. I'm wondering if I should render it as the zwitterion... I've never seen a structure of ciprofloxacin with formal charges, unlike some other zwitterionic antibiotics (e.g. several cephalosporins). I think I'll just ignore it as usual :) Fvasconcellos (t·c) 12:58, 15 October 2008 (UTC)

## Image:Water-2D-flat.png

Hi Ben. Is there a reason for that small angle? If no, you may want to upload a new version. --Leyo 22:52, 5 November 2008 (UTC)

I think it was to be consistent with the 90° bond angles in Image:Ammonia-2D-flat.png and Image:Methane-2D-square.png, for secondary school-level: see Wikibooks:A-level Chemistry/OCR (Salters)/Molecular geometry for context.
Cheers
Ben (talk) 23:59, 6 November 2008 (UTC)
OK. It might be a good idea to state that reason briefly on the image description page. --Leyo 00:50, 8 November 2008 (UTC)

## Atomic Orbitals

Hi, I used your pictures of the atomic orbitals for illustration in de:Orbital#Quantentheorie. Unfortunately, the tree 3p-Orbitals are missing and I took the 2p Orbitals. Are you able (and willing) to create them to have integrative pictures in the article? --Prolineserver (talk) 22:13, 10 November 2008 (UTC)

## Category:Organoiodine compounds

Hi Ben. You created this category a while ago. Is it still needed? We have Category:Organoiodides in Category:Organohalogen compounds. --Leyo 23:18, 22 December 2008 (UTC)

Hi Leyo,
I created the category because there are a few organoiodine compounds that are not really iodides, because the iodine is in an oxidation state higher than -1. They're mostly found at Category:Periodinanes. It doesn't really matter if Category:Organoiodine compounds gets deleted, as I think it is really just a parent category for Category:Organoiodides and Category:Periodinanes.
Merry Christmas!
Ben (talk) 17:32, 23 December 2008 (UTC)

## Thanks

I just wanted to say thanks many of your diagrams especially the ones on Molecular structure have been Very helpful in As Chemistry revision for my Jan exam !!!ARBAY TALKies 22:47, 23 December 2008 (UTC)

Thanks very much, Arbay. It's great my diagrams are proving useful. Good luck for your exam.
Ben (talk) 14:08, 24 December 2008 (UTC)

## The factual accuracy of the chemical structure Image:Chlorfenvinphos-2D-skeletal.png is disputed

 Dispute notification The chemical structure Image:Chlorfenvinphos-2D-skeletal.png you uploaded has been tagged as disputed and is now listed in Category:Disputed chemical diagrams. Images in this category are deleted after one month if there is no upload of a corrected version and if there is no objection from the uploader or other users. Please discuss on the image talk page if you feel that the dispute is inappropriate. If you agree with the dispute, you can either upload a corrected version or simply allow the image to be deleted. In all cases, please do not take the dispute personally. It is never intended as such. Thank you! --Cwbm (commons) (talk) 09:38, 28 December 2008 (UTC)

## About Materials of DS Visualizer

It is after a long absence. Thank you for always making molecule models. I want to ask you a question about ' Edit > Preferences > 3D Window > Materials ' this time. I always use DSV by the setting of the default, but how should be set Materials to make a molecular model like you?--CCoil (talk) 15:03, 17 January 2009 (UTC)

I don't know - I use version 1.5 of DSV, because the more recent versions (e.g. 2.0) have that materials setting you mention.
To make your models a little more shiny, try adjusting the lighting.
Hope this helps!
Ben (talk) 15:39, 17 January 2009 (UTC)
Thank you. However, the setting of the lighting is not memorized in 2.0. Is 1.5 of DSV the thing which is not available anymore?--CCoil (talk) 05:50, 18 January 2009 (UTC)
I haven't found DSV 1.5 available anywhere, but it might be if you look hard enough :).
Sorry.
Ben (talk) 10:51, 18 January 2009 (UTC)
It is regrettable. I will hear it from Accelrys. Thank you. --CCoil (talk) 03:01, 19 January 2009 (UTC)

## 3D model of celluose

Hi, I have a question regarding . In the middle it appears as if there's an O-O bond. Is that just an artifact of the perspective? Thanks, AxelBoldt (talk) 20:04, 14 February 2009 (UTC)

Hi Axel. The apparent O-O bond is indeed just an artifact. I'm working on a model based on experimental data right now. Thanks for letting me know.
Cheers
Ben (talk) 11:34, 15 February 2009 (UTC)
Ok, a picture based on experimental coordinates would be great. How did you create the above picture? AxelBoldt (talk) 18:17, 15 February 2009 (UTC)

I just built a model in Accelrys DS Visualizer (my method is described here) based on the connectivity and stereochemistry of β-D-glucose - http://en.wikipedia.org/w/index.php?title=Cellulose&diff=64200599&oldid=63204747. I then minimised the energy of a short chain using molecular mechanics. I must have made a mistake, or at least drawn the 2D version wrong.

Ben (talk) 18:39, 15 February 2009 (UTC)

## Category:Skeletal formulae

 Category discussion notification Category:Skeletal formulae has been listed at Commons:Categories for discussion so that the community can discuss ways in which it should be changed. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this category, please note that the fact that it has been proposed for discussion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it. If the category is up for deletion because it has been superseded, consider the notion that although the category may be deleted, your hard work (which we all greatly appreciate) lives on in the new category. In all cases, please do not take the category discussion personally. It is never intended as such. Thank you!

--Leyo 23:46, 25 February 2009 (UTC)

Thanks for the note, Leyo.
Ben (talk) 08:30, 26 February 2009 (UTC)

## Category:Organozinc compounds

Hi Ben. Can you please have a look at this category? Some of the structures have zinc bond in a liner way, others in an angled one. --Leyo 13:04, 5 March 2009 (UTC)

In the gas phase, they are apparently linear (Acta Chem. Scand. (1982) A36, 159-166) whereas with amine ligands, they go tetrahedral (J. Organomet. Chem. (2005) 690, 3846-3853).
Ben (talk) 14:50, 5 March 2009 (UTC)
In the first paper I read “The valence angle ZnCC is about 114° in both Et2Zn and n-Pr2Zn”. That does not sound like linear for me. Do I misinterpret this sentence? --Leyo 15:09, 5 March 2009 (UTC)
Greenwood & Earnshaw, p. 1221: "ZnR2... are invariably monomeric in solution with linear C-Zn-C coordination of the Zn atom."
The ZnCC in Et2Zn is not the same as the CZnC angle: C1-C2-Zn-C3-C4. ZnCC means Zn-C3-C4 or C1-C2-Zn, whereas CZnC means C2-Zn-C3.
Ben (talk) 15:16, 5 March 2009 (UTC)
OK, I see. Thanks for the explanation. In this case, four structures in Category:Organozinc compounds have an incorrect geometry, haven't they? --Leyo 15:44, 5 March 2009 (UTC)
I think so - they were probably just following the usual zig-zag convention for alkyl chains, and replaced a C with a Zn. Shall we contact the authors?
Ben (talk) 15:53, 5 March 2009 (UTC)
I contacted two of the three authors. The third is not active any more. --Leyo 17:14, 5 March 2009 (UTC)
Ben is right, I was unaware that organozinc compounds were linear across the C-Zn-C bonds and just drew them with alkane-like geometry. I have replaced my two images, but if either of you would like to update or replace them with something more sophisticated, please feel free to do so. Edgar181 (talk) 21:06, 5 March 2009 (UTC)

Those new images are perfect, Ed. I'm making a 3D model of tBu2Zn from X-ray data at the moment.

Ben (talk) 21:36, 5 March 2009 (UTC)

Should I refresh my Image:Ziram.png-pic? --Yikrazuul (talk) 21:46, 5 March 2009 (UTC)
That might be a good idea. According to Acta Cryst. (1966). 21, 536-546, the structure of the complex is this.
Ben (talk) 22:31, 5 March 2009 (UTC)

## Category:Organomercury compounds

Should organomercury compounds also all be linear? There are linear and non-linear images in Category:Organomercury compounds. --Leyo 14:10, 6 April 2009 (UTC)

All the organomercury compounds I've seen are linear. There may well be exceptions out there, but I think File:Diethyl mercury.svg, File:Mersalyl.svg, File:Thimerfonate.png and File:Meralluride.png should be investigated - they are probably linear.
I'll keep an eye out for experimental determinations of these structures.
Ben (talk) 14:45, 6 April 2009 (UTC)
HgEt2 calculated to be linear: J. Phys. Chem. B (2004) 108, 8419–8426, J. Organomet. Chem. (1991) 405, 141-147, Organometallics (1985) 4, 1964–1966.
Ben (talk) 15:05, 6 April 2009 (UTC)
Thanks for the fast reply. Are you going to tag the incorrect structures with {{disputed chem}} or do you want me to do so? --Leyo 15:22, 6 April 2009 (UTC)
I'll do it as I check each compound. Thanks, Leyo, for all your hard work on Commons, especially untagging all those "convert to SVG"s.
Ben (talk) 17:59, 6 April 2009 (UTC)
I have recently finished untagging all your images using CatScan.
File:Phenylmercuric borate.png might also be a candidate to look at. --Leyo 14:03, 8 April 2009 (UTC)

Thanks again, Leyo, you've done a great job.

I've searched SciFinder for structural information on the following compounds:

In the absence of any structure determinations from the literature, I assume they are all linearly coordinated at Hg. There was however a structural formula showing non-linear Hg coordination in the following book, which I would guess is just a mistake. Having said that, Greenwood & Earnshaw does give a few examples of tricoordinate Hg, so it's not impossible.

G. W. A. Milne () Drugs: Synonyms & Properties, Ashgate Publishing, p. 1,280 ISBN: 0-566-08228-4.

What do you recommend? Shall I just contact the authors?

Ben (talk) 16:31, 8 April 2009 (UTC)

That might be a good idea. The chemistry project on de-WP shares the opinion that Hg is linearly coordinated (see here if you are able to read German a bit). --Leyo 06:57, 9 April 2009 (UTC) PS. You might be interested in this RfD.

Nice one :) I did GCSE German, so I understood the main points of the discussion. I've contacted Ed, and I'll contact the others soon - gotta get a train now, though,

All the best

Ben (talk) 11:40, 9 April 2009 (UTC)

Hi Ben. If you have any suggestions for the mersalyl structure above, I'd greatly appreciate them. Cheers, Fvasconcellos (t·c) 17:37, 9 April 2009 (UTC)

Hi FV, I looked quite hard on SciFinder last night, but I couldn't find any discussion of the full three-dimensional structure of mersalyl acid or its derivatives (the sodium salt is more common, apparently). The closest I got was this from here.

SciFinder itself thinks the structure is this, which I take to mean this, but SciFinder can be unreliable in this respect.

Ben (talk) 11:58, 10 April 2009 (UTC)

I see a second mistake in the mersalyl structure - there is a water molecule connected to the mercury, but it should be a hydroxy group. Franz --FK1954 (talk) 21:41, 12 April 2009 (UTC)
Perhaps it's best to simply remove the structure for now. I won't redraw it for the time being—I don't do structures without a definitive source anymore :) Thanks a million to you both. Fvasconcellos (t·c) 16:00, 14 April 2009 (UTC)

## File:Atomic-orbital-3dyz-3D-phaseless.png

Hi Ben, I just read the German article about orbitals in which several graphs are included. I think there is a mistake in them because they should not depend on the azimutal angle \phi like several do (e.g. Atomic-orbital-3dyz-3D-phaseless.png). The spherical harmonics' dependence on \phi is only e^(i m \phi). If you want to display the shape (Form in the German article) it should in my opinion be the absolute value of the complex Psi-function because that corresponds to the probability to find the electron. And then there is no \phi-dependence. Just for you to classify what I am saying: I'm studying phyiscs in Germany in the 7th semester. Regards Jan

Hi Jan, thanks for your message.
I'm pretty sure the images are correct - see this University of Sheffield website. I know there can be confusion because physics and chemistry use different orbital wavefunctions - both give the same total molecular wavefunction when added. I haven't studied orbitals from a physics perspective, so it might be best to consult your lecturer. You can find the shapes of orbitals used in chemistry in many chemistry textbooks - try Atkins (de or en).
Ben (talk) 21:12, 18 March 2009 (UTC)

## File:Escitalopram-skeletal.png

Hi Ben. Can you please address the dispute yourself? Thanks. --Leyo 09:02, 24 March 2009 (UTC)

## And here I am again...

Perhaps you could add papaverine to your list of compounds to illustrate? I'm sure its crystal structure is floating around somewhere (bad joke). No rush, of course—just thinking this should be replaced with something a bit more polished. Thanks as always, Fvasconcellos (t·c) 13:45, 15 April 2009 (UTC)

No problem - got exams on Friday and Saturday, so after that I'll do it.
Cheers
Ben (talk) 23:04, 15 April 2009 (UTC)

Hi again, sorry it took so long.

Here they are:

Category:Papaverine

Enjoy :)

Ben (talk) 21:26, 20 April 2009 (UTC)

Thanks, Ben—that's excellent, just what I had in mind! Now, if I could get the article in shape... :) Fvasconcellos (t·c) 01:54, 21 April 2009 (UTC)
Been sidetracked as always, by another article! Do you think you could work your magic on this? I'm starting to owe you big time, aren't I? Fvasconcellos (t·c) 14:10, 18 May 2009 (UTC)

All done - my pleasure!

Ben (talk) 16:37, 18 May 2009 (UTC)

Wow that was fast—thank you! I'm hoping to get this to FA sometime in the future :) Fvasconcellos (t·c) 20:36, 18 May 2009 (UTC)

## Tip: Categorizing images

Hello, Benjah-bmm27!

Thanks a lot for contributing to the Wikimedia Commons! Here's a tip to make your uploads more useful: Why not add some categories to describe them? This will help more people to find and use them.

Here's how:

1) If you're using the UploadWizard, you can add categories to each file when you describe it. Just click "more options" for the file and add the categories which make sense:

2) You can also pick the file from your list of uploads, edit the file description page, and manually add the category code at the end of the page.

[[Category:Category name]]

For example, if you are uploading a diagram showing the orbits of comets, you add the following code:

[[Category:Astronomical diagrams]]
[[Category:Comets]]

This will make the diagram show up in the categories "Astronomical diagrams" and "Comets".

When picking categories, try to choose a specific category ("Astronomical diagrams") over a generic one ("Illustrations"). Pro-tip: The CommonSense tool can help you find the best category for your image.

BotMultichillT 05:40, 4 June 2009 (UTC)

## Naming

Hey Ben. Just letting you know I've been using your Compound-2D-skeletal naming structure in a few of my files. I hope you don't mind. Best, Fvasconcellos (t·c) 19:39, 18 October 2009 (UTC)

Hey, that's fine! I respect you and your work. And I chose that naming system to be descriptive and helpful to editors, not to be my trademark.
So go right ahead, you have my blessing.
Cheers :)
Ben (talk) 21:35, 18 October 2009 (UTC)

## Snacktail

hello, ben. Can you do for me a image of oxide hiposulfuric?

What is hyposulfuric oxide? If you know its chemical formula, I can try and find the structure for you.
Ben (talk) 21:26, 13 November 2009 (UTC)

HERE's the formula: S=O ; SO

Ah, I see. Sulfur monoxide is SO. See Category:Sulfur monoxide and en:Sulfur monoxide.
Ben (talk) 18:59, 15 February 2010 (UTC)

## Software used?

Which software did you use to create File:Beryllium-hydride-3D-balls.png and similar images? Please reply to my talk page. SharkD (talk) 00:34, 5 November 2009 (UTC)

 Hello, Benjah-bmm27. You have new messages at SharkD's talk page. You may remove this notice at any time by removing the {{Talkback}} or {{Tb}} template.

## U3O8

Salut. Are you willing to create a nicer version for [2]? Merci, 129.132.225.144 13:12, 6 November 2009 (UTC)

Comment: There is File:Kristallstruktur Triuranoctoxid.png. --Leyo 18:10, 27 November 2009 (UTC)

I think there are several polymorphs of U3O8. I'll have a go at some pics next week.

Ben (talk) 23:18, 27 November 2009 (UTC)

## Thank you for the structures for hexagonal ammonium fluorosilicate.

How do you think I should get the structures for the trigonal and cubic forms—along with photos that would also be good for Wikimedia Commons? Johnny Mineralogist (talk) 02:45, 25 November 2009 (UTC)

I get structures from a crystallographic database, but it's not freely accessible - I can access it via my university. I've just had a look: the most recent cryptohalite (cubic) structure determination I found is E. O. Schlemper, W. C. Hamilton, J. J. Rush, J. Chem. Phys. (1966) 44, 2499-2505, and for bararite (trigonal) it's E. O. Schlemper, W. C. Hamilton, J. Chem. Phys. (1966) 45, 408-410.
AMCSD has the cubic structure of [NH4]2[SiF6] from the reference above.
Do you mean actual photographs of the bulk substance? Or images of models of the crystal structure? I've made a guide that describes how I make my images, it's here.
Ben (talk) 12:07, 25 November 2009 (UTC)

## Barnstar & 2D diagrams query

Hello Benjamin, I must thank you for all the 2D and 3D molecular drawings that you provided for my Wikipedia articles. One could argue that your images are the best part of all chemistry articles.
All the best, --Jorge Stolfi (talk) 18:28, 26 January 2010 (UTC)

## Corundum-3D-balls.png

I saw a comment on the Aluminium oxide talk page (http://en.wikipedia.org/wiki/Talk:Aluminium_oxide), which I agree with. It reads:

File:Corundum-3D-balls.png MC Escher? like this? that model doesn't make sense, it looks like a hundred times that M. C. Escher thing :-) I can't imagine how this looks in reality. --androl (talk) 18:10, 5 October 2009 (UTC)

Would it be possible to change the shading, or something, so that the picture is easier to understand? I can't figure out which parts are close to the viewer, and which are far away. --HelgeStenstrom (talk) 12:19, 10 March 2010 (UTC)

Thanks for this, I hadn't noticed that message.
Images of this kind are difficult to make, as there's often a trade-off between clearly showing the geometry around each atom (clearer with perspective) and clearly showing the symmetry of the crystal structure (clearer without perspective). I went for symmetry in this case. I can have a go at making a complementary image, although I won't be able to make it look quite the same as the one we're discussing.
I've made a 3D version here.
Ben (talk) 20:01, 10 March 2010 (UTC)
@Helge: Have you have a look at the alternatives in Category:Corundum? --Leyo 07:57, 11 March 2010 (UTC)

## Re: Trimers

That's fine. Thank you for your correction. --Aushulz (talk) 16:40, 11 March 2010 (UTC)

## Mephedrone synthesis

Thanks for adding the synthesis diagram to the mephedrone article. I'm sure it is right but I'm a little confused as to why the end product doesn't have the same structure as the one in the infobox. Would you mind explaining it for me? Thanks Smartse (talk) 12:54, 24 March 2010 (UTC)

I would replace “Me” by “CH3” or just a line. --Leyo 13:04, 24 March 2010 (UTC)

I've tried to address both of your concerns in a new version of the image: File:Mephedrone-synthesis-scheme-2D-skeletal-B.png.

Thanks for the feedback!

Ben (talk) 15:31, 24 March 2010 (UTC)

Cheers, that looks great. Smartse (talk) 15:38, 24 March 2010 (UTC)
Actually no, the nitrogen in the product should have 2 hydrogens and be +1 charge (formation of the ammonium-chloride salt by reaction of the neutral amine with HCl). DMacks (talk) 20:07, 21 April 2010 (UTC)
Thanks, DMacks, I've modified the image accordingly.
Ben (talk) 20:21, 21 April 2010 (UTC)

Ben, would you be able to provide a step by step how to make mephedrone? An all out recipe of a sort, with amounts of each substance included. I am aware the synthesis for it is already listed elsewhere on wikipedia, but as for the amounts and thorough explanation of the synthesis process... very little information is available. Cheers!

I don't want to help people to make (soon-to-be-illegal) drugs for four reasons:
• That's not the purpose of Wikipedia
• I might get in trouble
• I don't think recreational drug taking and/or dealing is a particularly good idea
• If readers want to learn about synthesis and pharmaceutical chemistry, there are much better ways
Having said that, you can read the information I used to draw the scheme: Forensic Sci. Int. (2010) 197, 59–66 or the relevant section of that paper.
Ben (talk) 11:32, 5 April 2010 (UTC)

Ben,

I work for a company called Eastern Research Group (ERG Inc.), my name is Morty. I am the one who asked the question above for you information. I understand thoroughly what you said to counter my original statement, however, a very small sector of my company has been commissioned this project for the purposes of shutting down/gathering more information concerning this so called "plant food" and we are seeking the help of individuals with knowledge in this area to assist. If you would be able to rethink my proposition and be of assistance not only would you be providing a great service for me personally, but a job offering (part or full time) would be in store for the remainder of the project. Please post back on here if possibly interested, as I do not particularly have time to read through the articles you provided nor do I personally have an adequate degree of any sort for chemistry. If you are interested you can either post your e-mail or let me know and I will post mine. Thanks again Ben. Cheers.— Preceding unsigned comment added by 75.108.190.178 (talk • contribs) 22:05, 5 April 2010 (UTC)

Hello Ben, many thanks for all your work. This atmospheric chemist really appreciates it.

I've been working off and on to improve the pages on en for NOx and the Nitrogen Oxides. The latter page, nitrogen oxides, needs to include the nitrate radical NO3. Although a radical, it is very important in atmospheric chemistry, particularly at night. (NO and NO2 are radicals, anyways; clearly important radicals belong on this page).

Any chance you can make an image of NO3 radical? [For those keeping track, it should have slightly different nuclear geometry than NO3-].

If you make a version of NO3 radical and put it on that page, I'll at least start a stub for NO3. But we should get on it on the 'category' page for completeness.

Thanks! BoulderDuck (talk) 04:22, 15 May 2010 (UTC)

Can do.
Just been reading the latest articles on the geometry and electronic structure of NO3.
What kind of image were you thinking of, a ball-and-stick model?
Ben (talk) 18:52, 15 May 2010 (UTC)
Ben - you did the pictures for the other Nitrogen Oxides on that page. Space filling models, but you'll want to look since they definitely have a common style.
Thanks! BoulderDuck (talk) 03:00, 18 May 2010 (UTC)

## Warfarin crystal structure

Hi. I'm from en.wiki. The ball-and-stick one you've uploaded from crystallography is the cyclic hemiketal tautomer of the standard structure the drug is given as, including the structural representation above it. This is causing some confusion. If you would label your structure as the cyclic hemiketal tautomer of the structure above, I think people could figure out why they aren't perfectly the same. Sbharris (talk) 00:10, 19 June 2010 (UTC)

Why is the drug drawn differently to how it exists in the solid state?
Is is acyclic in solution (and therefore in injections and in vivo)?
I could compute the acyclic structure, perhaps with a semi-empirical method, but this is verging on OR.
Ben (talk) 19:11, 19 June 2010 (UTC)

## Mephedrone metabolism

Hi Ben, would you be able to make a diagram based on figure 3 of this paper showing the proposed scheme for the metabolism of mephedrone? Also, if you can make space filling diagrams, it would be cool to have one of en:Trehalose, I asked on the chemistry request page but no one has done it as far as I can tell. Thanks! Smartse (talk) 14:02, 4 July 2010 (UTC)

Do you mean this page? There are currently not so many active drawers… --Leyo 14:21, 4 July 2010 (UTC)
I can certainly make those diagrams. I'll do it later today.
Cheers,
Ben (talk) 08:25, 5 July 2010 (UTC)

## The old non-pink MnCO3 problem

Hi, Ben. See above. As somebody else said 3 years ago, your sample of MnCO3 is pretty bad, and really can't be MnCO3. I've seen fresh MnCO3 and it doesn't look like that, at all. It's a very pale pink solid, as are all pure Mn(II) compounds. Please answer on my TALK page on en.wiki. Thanks! Sbharris (talk) 22:23, 7 July 2010 (UTC)

## Cyclic-ozone-3D-balls.png

Hi Ben, According to the attribution this image is yours.

I'm wondering though do you have the original file you used to generate the PNG? I'd like to create an SVG from it.

Thanks!

http://commons.wikimedia.org/wiki/File:Cyclic-ozone-3D-balls.png

## Biodiversity Photo - route

Hello Ben, My name is Rita Neves. I work in Câmara Municipal de Lisboa, that is a Public Organism in Portugal. Actually, we are working on a road book of Biodiversity of Lisbon, for which we are going to produce a panel and a brochure. We found your photos on Wikimedia Commons and liked specially one of them very much, so we would like to know if you could allow us to use your photos, for free, to publish on this project, knowing that the brochure of will be for free distribution to everyone. The photo we are considering to use are the following:

http://commons.wikimedia.org/wiki/File:Alectoris-rufa-with-young.jpg  - Public Domain


The brochure will have four brackets. - Broochura a pocket to take the route - A brochure to present the day of inauguration

- Schedules for species identification
- Panels that will be fixed in the Land


As i said the Free Access will be everything :)

If you are the author and provide us that photo, we will refer your name in the bibliografy and we need to know what´s the name you want on the bibliography? Ben Mills? If it´s possible please respond to ritasoraia2001@hotmail.com or rita.neves@cm-lisboa.pt or here on Wikimedia.

Thank you very much. Our best regards

Hi Rita,
Of course you may use File:Alectoris-rufa-with-young.jpg.
If you would like to refer to me as the author, you can call me Ben Mills, but you don't have to.
Best wishes,
Ben (talk) 11:54, 28 August 2010 (UTC)

## Darifenacin

Hey Ben, how's it going?

Seems I only come round when I have a favor to ask :) Anyway, I was wondering whether you could have a look at this Acta Crystallographica paper and whip up a 3D model of darifenacin. I'm reviewing my old structures and will be making an improved version of File:Darifenacin.svg soon, and thought a compound with this sort of conformation (nearly impossible to represent accurately with a 2D structure) could really use a model to make visualization easier. I don't know whether the article gives you the information you need, but thanks in advance!

Best, Fvasconcellos (t·c) 00:24, 13 October 2010 (UTC)

By the way, you do know that File:Benzylpenicillin-2D-skeletal.png is penicillin V, not benzylpenicillin, right? :) Cheers, Fvasconcellos (t·c) 06:08, 14 October 2010 (UTC)

Hey FV, thanks for the note about benzylpenicillin, now fixed.

I've also done darifenacin (File:Darifenacin-hydrobromide-from-xtal-2009-CM-3D-balls.png).

Cheers,

Ben (talk) 16:46, 17 October 2010 (UTC)

Thank you!! :) Fvasconcellos (t·c) 13:18, 25 October 2010 (UTC)

## File:Chlorine-trifluoride.png

Hi Ben, Happy New Year. I noticed that an image that you created has been marked as disputed. Can you have a look at File:Chlorine-trifluoride.png? Thanks, Ed (Edgar181) 12:46, 6 January 2011 (UTC)

## File:Skeletal-formulae-example-1-hexane.png

Hi Ben, from my point of view it would be helpful and perhaps less confusing to people not very familiar with chemical drawings to superscript the locants in that formula. Subscription normally indicates indices. Thanks a lot from Germany --Mabschaaf (talk) 11:02, 26 January 2011 (UTC)

## File:Acrylamide-3D-vdW.png

 File:Acrylamide-3D-vdW.png has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

DMacks (talk) 13:22, 9 February 2011 (UTC)

## File:Hydrogen-sulfide-2D-dimensions.svg

Hi Ben. Do may want to fix the SVG bug yourself. --Leyo 16:17, 31 March 2011 (UTC)

Hi Leyo,

I don't really have the software to edit SVGs any more. If you'd like to do it or upload a new version of the file yourself, be my guest.

Cheers. --Ben (talk) 19:20, 31 March 2011 (UTC)

OK, done using Inkscape. --Leyo 07:35, 1 April 2011 (UTC)

Thank you very much! --Ben (talk) 10:52, 1 April 2011 (UTC)

## Template:Element_color

 Template:Element_color has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this template, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it. Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

:| TelCoNaSpVe :| 12:14, 1 April 2011 (UTC)

## cis/trans oleic acid?

Hi Ben, Is there any problem with the way the skeletal figure and the 3D model are dis-similar on the oleic acid page?

Is one of them twisted on the OH end?

Thanks for all of your contributions. Best regards, Mic

Hi Mic, thanks for pointing out this issue.
Both images are actually correct and equally correctly represent the oleic acid molecule, but they depict two different conformations related by rotation about a carbon-carbon single bond. Rotation about single bonds is usually unrestricted and is constantly occurring – molecules like oleic acid are not rigid, they are constant flopping around like a chain being wiggled.
I'll replace the skeletal formula to make the two represenations match more closely.
Cheers,
Ben (talk) 11:09, 18 April 2011 (UTC)

## I created this barnstar for you.

 The Molecule Barnstar For giving me the inspiration and the means to create so many molecule pictures (including this one). Thank you. --Ephemeronium (talk) 14:05, 31 May 2011 (UTC)
Thanks Ephemeronium, that's really nice. Keep up the excellent work. --Ben (talk) 15:02, 31 May 2011 (UTC)

## file:Cefuroxime-2D-skeletal.png

Hey Ben, there is an issue about your structure. According to the literature, cefuroxime should be in the Z-conformation, however, you have drawn the E-conformation. Would you simply flip the methoxy group? Thx and cheers, --Yikrazuul (talk) 17:26, 6 June 2011 (UTC)

Yes, if you show me where it says this in the literature. --Ben (talk) 10:41, 9 June 2011 (UTC)

I've done the research myself and changed the image. Thanks for letting me know. Cheers. --Ben (talk) 12:10, 9 June 2011 (UTC)

Hey Ben, thx for the response, I could refer to German literature, showing this aspect. But actually you have uploaded another version, so I assume that both conformations exist? Cheers, --Yikrazuul (talk) 19:46, 9 June 2011 (UTC)

I uploaded the other version because when I tried to overwrite the original file, it didn't overwrite properly. See en:Talk:Cefuroxime for my findings. In a nutshell, in all the crystal structures I've seen, the OCH3 group is always trans to the heterocyclic ring (furan in cefuroxime, thiazole in ceftizoxime). --Ben (talk) 10:40, 10 June 2011 (UTC)

## File:Chloroform displayed.svg

Hi Benjah-bmm27, I recognized that in the structure above the height of the "L"s is a little bit bigger than the height of the "C"s. This may cause some trouble if the "L"s are misinterpreted as lone pairs. Could you please fix that? Thx --Mabschaaf (talk) 17:51, 19 June 2011 (UTC)

The vector version was created by Fvasconcellos. --Leyo 20:25, 19 June 2011 (UTC)
I've updated the file to convert the text to curves. Ben: sorry for intruding on your talk page! :) Fvasconcellos (t·c) 05:06, 20 June 2011 (UTC)

No problem, guys. Hope you got what you wanted. --Ben (talk) 13:50, 22 June 2011 (UTC)

## File:GABA-3D-balls.png

Dear Benjamin,

I came across this file, and I was hoping to reproduce this image of GABA in my forthcoming book CONNECTOME. I realize that you placed the image in public domain, but still I would like to ask your permission. Could you email me at seung@mit.edu? Thanks!

Sebastian

## english Wikipidea FP try

Hi Ben,

I quite like your "ribbon" of organofluorines. so much information on so many key molecules in such a small amount of space. I did a bit of modification to it and am now using it in "Fluorine" which I am trying to get the FA at en-WP.

Also, I entered the new ribbon (rotated and a little re-arranged) for a Wiki Featured Picture try. They are a little down on just pictures of molecules, but I think there is a spark of something special in the way we arrange them with the ribbon and all and sooo many key F-C molecules discussed in article.

FYI, they want an SVG. Do you have or can you help? I asked at graphics help and they said to check if you had something.

See: [3], [4], [5].

Hello there,
I don't have a way of making these images as SVGs - sorry. It is possible to re-draw such an image as SVG if you have appropriate software and crazy amounts of spare time, but I think it's a waste of time. Why not just use PNG? Tell the FA people to get over themselves. No molecular graphics software that I know of exports SVG.
Ben (talk) 17:29, 26 July 2011 (UTC)
Hello, it must not SVG, any vector format is sufficient to convert via a small detour to SVG. It is time as promised to delete File:Fluorocarbon-montage rotated-2.svg. Have a nice day. -- πϵρήλιο 02:34, 16 August 2011 (UTC)

## Chair-flip of File:Cyclohexane-chair-colour-coded-3D-balls.png

Could you also do the "other" chair conformation of this molecule (red eq/blue ax, front-leftish carbon tilted "up", etc.)? DMacks (talk) 03:40, 4 August 2011 (UTC)

## File:Prostacyclin-2D-skeletal.png

Hi Benjah-bmm27, in this drawing the stereochemical information of the bridgehead-Cs are missing. Could you please correct this? Thx --Mabschaaf (talk) 09:25, 6 August 2011 (UTC)

Done. Thanks for reminding me. --Ben (talk) 13:58, 8 August 2011 (UTC)

## File:Ethane-2D-flat.png

 File:Ethane-2D-flat.png has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

DMacks (talk) 17:43, 7 September 2011 (UTC)

## hello

 what you have done seems wonderful nice to see you. LiEnoch (talk) 09:41, 25 October 2011 (UTC)

## File:Dexmethylphenidate-3D-balls.png

Hi Ben. Could you please check the stereochemistry (compare to en:Dexmethylphenidate)? --Leyo 13:43, 15 December 2011 (UTC)

Hi Leyo,
Thanks for notifying me of this error. I suggest replacing all instances of File:Dexmethylphenidate-3D-balls.png with File:Dextromethylphenidate-based-on-hydrochloride-xtal-1995-3D-balls.png, and deleting the former.
Merry Christmas! --Ben (talk) 20:56, 23 December 2011 (UTC)
Hi Ben. I just wanted to let you know that I have marked File:Dexmethylphenidate-2D-skeletal.png as disputed for the same reason. Ed (Edgar181) 16:03, 6 January 2012 (UTC)

## Request for molecule diagram

Hi Ben. I am a big fan of your organofluorine strip of molecules.

Could you make me one more molecule in the same style as the strip? Preference would be for en:Trifluralin, but could be any agrichemical that contains fluorine.

This will support me in article work. I will make a ministrip showing the two drugs, the aenesthetic, and the agrichemical. It will sit in my section on drugs and agrichemicals. Can get one of the graphics lab types to help with the layout, but I need the molecule itself.

Help for an article writer? Please?

71.127.128.218 03:07, 20 January 2012 (UTC)

## File:Orthocarbonic-acid-Spartan-MP2-3D-balls-B.png

 File:Orthocarbonic-acid-Spartan-MP2-3D-balls-B.png has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

84.61.139.62 14:51, 13 February 2012 (UTC)

## Category:1,3-dioxolanes

 Category:1,3-dioxolanes has been listed at Commons:Categories for discussion so that the community can discuss ways in which it should be changed. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this category, please note that the fact that it has been proposed for discussion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it. If the category is up for deletion because it has been superseded, consider the notion that although the category may be deleted, your hard work (which we all greatly appreciate) lives on in the new category. In all cases, please do not take the category discussion personally. It is never intended as such. Thank you!

DMacks (talk) 12:19, 20 March 2012 (UTC)

## File:Grubbs-1G-3D-balls.png

I don't know if you made this picture by yourself but there's a Hydrogen atom missing at the C-Atom attached to the Ruthenium Atom.

Thanks very much for noticing. I will fix the image ASAP. --Ben (talk) 22:43, 30 April 2012 (UTC)
Ping? Still missing H. DMacks (talk) 15:43, 7 June 2012 (UTC)
Sorry, I've had finals. Will do it now. --Ben (talk) 17:29, 7 June 2012 (UTC)

## Jmol? So say!

If you are using Jmol to create the images of the molecular structures, I suggest you mention this in your presentation (profile).

I get here, from an image on Wikipedia, because it wanted to ask you what program you use to create images of the molecular structures. Through their website I discovered that it is the Jmol.

AlexandreMBM (talk) 15:40, 7 June 2012 (UTC)

As far as I remember, I have only ever used Jmol to make two images: File:Propargyl-chloride-MP2-Jmol-3D-balls.png and File:Aristolochic-acid-from-xtal-2007-3D-balls-Jmol.png. The vast majority (>99%) of my images are made with Accelrys DS Visualizer, as noted on almost all my image description pages. For example, see File:Trans-Fp2-from-xtal-2009-3D-balls.png. --Ben (talk) 17:27, 7 June 2012 (UTC)

## Template:Full periodic table

 Template:Full periodic table has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this template, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it. Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

84.61.149.75 17:41, 11 June 2012 (UTC)

## File:Beta-D-glucose-from-xtal-3D-balls.png

Dear Dr. Mills,

I am a permissions editor for a textbook publisher and I am currently working on a biochemistry textbook and I would like to use your image of Ball-and-stick model of the β-D-glucose molecule, C6H12O6, as found in the crystal structure. I was wondering if I could get a confirmation of public domain from you? Thank you your time and assistance.

Lauren

Hi Lauren,
I'm not Dr Mills yet, give me another four years!
I can confirm that I have released File:Beta-D-glucose-from-xtal-3D-balls.png into the public domain.
Best wishes, Ben (talk) 17:04, 25 June 2012 (UTC)

## Location?

Hi Benjah - can you add a photo location to File:Alectoris-rufa-with-young.jpg, please? Thanks! - MPF (talk) 22:42, 13 August 2012 (UTC)

## Category:Aspirin

 Category:Aspirin has been listed at Commons:Categories for discussion so that the community can discuss ways in which it should be changed. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this category, please note that the fact that it has been proposed for discussion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it. If the category is up for deletion because it has been superseded, consider the notion that although the category may be deleted, your hard work (which we all greatly appreciate) lives on in the new category. In all cases, please do not take the category discussion personally. It is never intended as such. Thank you!

77.184.48.22 04:56, 11 October 2012 (UTC)

## A barnstar for you!

 The Graphic Designer's Barnstar Bonjour, i' m writing a book (160 pages, 300 pictures) in France about hemp agriculture…Is it possible to illustrate it with the picture of : File:L-cysteine-3D-vdW2.png Description L-cysteine 3-D | Source Derivative work of User:Benjah-bmm27 | Date 09-29-07 | Author Photohound Category:L-cysteine ... (1 100 × 979 (245 Kio)) - 22 mai 2010 à 13:53  Source Derivative work of User:Benjah-bmm27.... I have read that this picture is in the public domain... But can i have your exclusive authorisation to use it for my book…  Have you maybe an high résolution version ? i will thanks your under this photo…as a pub, which name must i write ? Thank you for your help…  Jah-ova (talk) 22:40, 1 November 2012 (UTC)
Hi Jah-ova, thanks for the barnstar! You are welcome to use File:L-cysteine-3D-vdW2.png for your book. As I have released the image into the public domain, I cannot grant exclusive rights to it - it is already unleashed on the world, if you like. I could make you a similar image at high resolution. I am quite busy with real life at the moment, what's the deadline? --Ben (talk) 09:13, 2 November 2012 (UTC)

## A barnstar for you!

 The Graphic Designer's Barnstar i have already a 1100 x 979 in 72 dpi version, do you think it will be enough for my book ? dead line : 2 or 3 weeks... Jah-ova (talk) 22:38, 2 November 2012 (UTC)
Ask your publisher if that image size is sufficient - if not, ask me again. Best wishes, Ben (talk) 10:37, 3 November 2012 (UTC)

## File:Naphthalene-numbering-2D-skeletal.png

Hi Benjah-bmm27, the numbering of the C-atoms in this image shold be corrected from 9/10 (which would be correct for saturated HCs) to 4a/8a which is common for aromatic systems. Thanks --Mabschaaf (talk) 09:01, 13 November 2012 (UTC)

## Your captopril structure has an error

### The factual accuracy of the chemical structure File:Captopril-3D-vdW.png is disputed

 Dispute notification The chemical structure File:Captopril-3D-vdW.png you uploaded has been tagged as disputed and is now listed in Category:Disputed chemical diagrams. Files in this category are deleted after one month if there is no upload of a corrected version and if there is no objection from the uploader or other users. Please discuss on the file talk page if you feel that the dispute is inappropriate. If you agree with the dispute, you can either upload a corrected version or simply allow the file to be deleted. In all cases, please do not take the dispute personally. It is never intended as such. Thank you! --Methano (talk) 04:53, 1 December 2012 (UTC)
Hi Methano, I've uploaded a new image, File:Captopril-from-xtal-1980-3D-sf.png, based on the crystal structure. I might just fix File:Captopril-3D-vdW.png rather than let it be deleted. Cheers, Ben (talk) 09:03, 21 December 2012 (UTC)

## Image request: third form of Co2(CO)8

In addition to File:Dicobalt-octacarbonyl-non-bridged-3D-balls.png and File:Dicobalt-octacarbonyl-bridged-3D-balls.png/File:Dicobcalt-octacarbonyl-from-xtal-3D-balls.png, there is a third isomer of this compound discussed in doi:10.1021/ic50168a037. Could you render it in the same style as the others to complete the set? The structure is (CO)4Co–Co(CO)4 with each Co having trigonal–bipyrimidal geometry but each Co occupies an equatorial position on the other (unlike File:Dicobalt-octacarbonyl-non-bridged-3D-balls.png, where they are trigonal–bipyrimidal but each Co axial on the other). And it has the Co–Co conformation placing the axial axis of each Co rotated 90° from the other. DMacks (talk) 04:33, 9 December 2012 (UTC)

Ahah, found we already have a skeletal of it--File:CobaltCarbonyl.png--easier than my simply trying to describe it:) DMacks (talk) 18:52, 9 December 2012 (UTC)

Done: File:Dicobalt-octacarbonyl-D2d-non-bridged-3D-balls.png, File:Dicobalt-octacarbonyl-D2d-non-bridged-end-on-3D-balls.png. Sorry for the delay. --Ben (talk) 11:09, 21 December 2012 (UTC)

No worries, thanks for working on them. However, is the conformation correct? File:Dicobalt-octacarbonyl-D2d-non-bridged-end-on-3D-balls.png appears to have 45° dihedral but the ref says "The two cobalt trigonal bipyramids are visualized as oriented 90’ with respect to one another." That would make the ligands eclipsed along the Co–Co bond? DMacks (talk) 21:07, 23 December 2012 (UTC)

Thanks DMacks, I've fixed them now. --Ben (talk) 10:41, 31 December 2012 (UTC)

Look great! DMacks (talk) 15:02, 31 December 2012 (UTC)

## User talk:Leyo#Molecules

Hi Ben. Is there anything you would like to add there? You are clearly more experienced in creating 3D images of molecules than I am. --Leyo 15:29, 12 January 2013 (UTC)

## File:Dithionate-2D-dimensions.png

Just to let you know, I just tagged your structure as disputed, because there the angle is obviously incorrect. Maybe you could check, please. --Mabschaaf (talk) 20:54, 12 January 2013 (UTC)

Yes, my mistake. It should read 103° rather than 215°, which I must have copied from the S-S bond length of 215 pm and forgotten to change the value. I will update it ASAP. --Ben (talk) 12:54, 13 January 2013 (UTC)

## Aspartame Error?

Hi Ben, Thank you so much for all the hard work creating the wonderful molecular models! As I was looking at the aspartame model I noticed that the nitrogen molecule on the left appears to have three hydrogens attached instead of two. Is that a little mistake? — Preceding unsigned comment added by 63.123.95.253 (talk • contribs)

This image shows the zwitterionic form. --Leyo 00:18, 15 January 2013 (UTC)

## File:Phosphoric-acid-2D.svg

 File:Phosphoric-acid-2D.svg has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

DMacks (talk) 11:25, 2 June 2013 (UTC)

## File:Phosphoric-acid-2D-dimensions.svg

 File:Phosphoric-acid-2D-dimensions.svg has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

DMacks (talk) 11:30, 2 June 2013 (UTC)

Cwbm (commons) (talk) 08:44, 5 June 2013 (UTC)

## Zirconocene dichloride geometry

In your File:Zirconocene-dichloride-2D-skeletal.png, you appear to have the Cp–Zr–Cp linear (like in ferrocene) rather than bent (like your File:Zirconocene-dichloride-from-xtal-3D-balls.png). At best, it's from a special perspective (like a Fisher projection?) that makes the geometry confusing. A side perspective like File:Cp2Ti(CO)2.png is more standard from the literature I've seen. DMacks (talk) 21:48, 27 July 2013 (UTC)

Thanks for pointing this out DMacks. It was really intended to go alongside other diagrams so that, taken together, the structure is clear. See Wikibooks:A-level Chemistry/OCR (Salters)/Open-Book Paper/Discovery and development of metallocene catalysts. However, I see the image is used on various different Wikis and could be clearer, so I will make a new one. --Ben (talk) 10:57, 28 July 2013 (UTC)

## Benzoylecgonine image?

Please see this Wikipedia discussion - briefly I think the stereochemistry in this image may be wrong (or the stereochemistry in the other accompanying images is wrong). Thanks. (Stillnotelf on en-wiki) -- 63.142.216.252 00:49, 30 July 2013 (UTC)

## File:Ketamine-2D-skeletal.png

 File:Ketamine-2D-skeletal.png has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

Starless (talk) 19:05, 18 September 2013 (UTC)

## Two very similar images

Do you know what the use-case or difference is between these diagrams of yours?

They are same dimensions and visually the same. They differ by 2K filesize but I can't figure out what that difference is. DMacks (talk) 06:27, 3 January 2014 (UTC)

I think the one ending -web was exported from Photoshop using a setting designed to optimise the image for web browsing. The actual difference is probably pretty subtle. I'm not really sure what exactly it does differently. Maybe the order in which the lines are downloaded? --Ben (talk) 11:48, 3 January 2014 (UTC)

## File:Azo-coupling-A-2D-skeletal.png

And also:

Hi Benjah-bmm27. Your files listed above are in Category:Chemical images that should use vector graphics. Could you please check, if the tag may be removed (in the case of high resolution PNGs), if there is already an SVG version, or if you consider uploading an updated version of higher resolution/quality on top of the old? Thank you. Leyo 13:45, 27 January 2014 (UTC)

Hi Leyo. These PNGs are all pretty hi-res. I haven't made SVG versions - I tried a while ago but the results were not good enough. If higher quality is required, I can provide that, but these images are all at least 1000 px wide or tall. Ben (talk) 14:15, 27 January 2014 (UTC)
My goal is to have the images that are of high quality or that have been replaced removed from this category. I guess that for most of your files that tag may just be removed with reference to the category description. I provided this list using VFC to be able to review all tagged uploads of yours at once. --Leyo 16:43, 27 January 2014 (UTC)

## Lithium Carbonate

Hi Benjah, recently a user brought it to my attention that Lithium carbonate is the most commonly prescribed type for mood affective disorders such as Bipolar disorder. The page currently displays the chemical structure of lithium citrate instead. I think the user raised a fair point when he said lithium carbonate should be the one shown. However, I could not find much on Wikimedia Commons. I found a couple of images but no stick-ball figures or 3-D figures of the chemical structure. I found one poorer quality image of lithium carbonate's chemical structure. I am unfamiliar with the programs used to create these images. Would you be willing to help with that? I can be reached on my talk page here on Wikimedia Commons or on Wikipedia (I prefer the latter, but your choice). I hope you'll help since I think it really would be a great addition to the article and your expertise would be very helpful. Thank you! TylerDurden8823 (talk) 02:52, 28 March 2014 (UTC)

## File:Dinitrogen-pentoxide-2D.png

Hello Benjah-bmm27, after a discussion in the german wikipedia we have some doubts if the angles visible in that picture are valid. At least different source seems to state different valid ones. Our best source (sorry it is a german book, but it shows a three dimentional structure) says it angle of 133° is not the NON-angle but the twisting/rotating angle between the planar NO3 units. The NON angle is given with 111.8°. Also if you have a look to table 3 in this document there is a "r" in front of the 133° values, which sounds for me like "rotating" and provide two additional angles (this document also give in the table 3 a list of different values taken from different studies). Also this source talks about rotating. Maybe the N=O=N angle is also 133°, but then it is irritating for me why N-O=N is given with 116° because 360 - 133° - 116 ° = 111°, what means one N-O=N is 111° and the other is 116° ? If N=O=N is not given directly (only indirectly as 360° - 2*116° = 128°) and the 133° is the rotating angle all would be fine, but thats only my assumption. Could you please have a look and give your opinion to that ? Thanks. Rjh (talk) 06:18, 9 May 2014 (UTC)

Hi Rjh, thanks for reminding me about this molecule! Steudel's book looks like an excellent source (I can read enough German to understand what is written there. I'll have a careful look at the other references you've kindly provided and ask some colleagues their opinion. I hope to update the image tomorrow. Best wishes, Ben (talk) 13:34, 9 May 2014 (UTC)
Any new insights so far? --Leyo 19:31, 24 May 2014 (UTC)

Hi both, the best recent reference I have found for the structure of gaseous N2O5 is B. M. McClelland, A. D. Richardson, K. Hedberg, Helv. Chim. Acta, 2001, 84, 1612-1624, title A Reinvestigation of the Structure and Torsional Potential of N2O5 by Gas- Phase Electron Diffraction Augmented by Ab Initio Theoretical Calculations, doi: 10.1002/1522-2675(20010613)84:6<1612::AID-HLCA1612>3.0.CO;2-K. Despite the flexibility of the molecule on account of the N-O-N=O torsion angles, the study provides accurate values for the other structural parameters. For the most stable conformation, the rg distances are N-O 1.505(4) Å and N=O 1.188(2) Å. The alpha angles are N-O-N 112.3(17)°, O=N=O 134.2° and O-N=O 112.8°. The most stable conformation has torsion angles N-O-N=O equal to 33.7°, give or take approximately 3-4°. There is estimated to be a difference between two symmetry non-equivalent O-N=O angles of 6.7°.

What do you think of this new information? Ben (talk) 18:25, 3 June 2014 (UTC)

See File:N2O5 from McClelland et al 2001.png for a diagram. Ben (talk) 18:42, 3 June 2014 (UTC)

## File:Chlordane-3D-balls.png

 File:Chlordane-3D-balls.png has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

Leyo 20:40, 27 May 2014 (UTC)

## Would like to consider working together

Am a Prof in the US, without time to do figures for the chem articles I edit. Maybe we could be a 1-2 punch. You use chem draw I presume? You inorg, ochem, or struct chem in your training? Cheers, Le Prof Leprof 7272 (talk) 14:36, 28 May 2014 (UTC)

Hi Le Prof, I'm happy to do a few figures here and there. I'm pretty busy myself with my PhD, so I may not always be available, but we can discuss that on a case-by-case basis. I've done research in a variety of areas, notably organometallic kinetic and mechanistic studies, X-ray crystallography and currently organic materials chemistry. Did you have any particular projects in mind at present? Cheers, Ben (talk) 17:12, 2 June 2014 (UTC)
Glad to hear back from you; timing is perfect, just spent a half day creating a Flippin Lodge image from Heathcock's original Aldrichimica Acta article, and I can tell you, graphics is not my thing. I will begin to look about for the next best thing. Look here for a list of images I have done (very short). And stay focused, and upbeat, it's a hard grind. (You know the work of TK Hollis at Mississippi, by any chance?) Cheers, Le Prof. Leprof 7272 (talk) 23:36, 10 June 2014 (UTC)

## Chip fire

Just gotta ask.....did this get put out before there was much damage...or is that a silly question? My stove fire was much smaller and it still destroyed the microwave and stove.--Amadscientist (talk) 23:25, 28 May 2014 (UTC)

Short answer: it burned itself out in a few seconds! This was actually a deliberate and controlled demonstration by an experienced secondary school science teacher. It starts out as a small metal beaker full of molten burning candle wax, and a small cup of water is added. The water sinks to the bottom of the beaker (being denser than the molten wax), comes into contact with the very hot metal surface, and immediately evaporates, ejecting the liquid wax above into the air in a plume of burning droplets. The quantities of water and wax were chosen so that all the flammable material burns away while airborne, leaving little residue or damage, except a black mark on the fireproof ceiling tiles above. The table surrounding the bunsen burner was covered in fireproof mats to prevent damage to the underlying wood. Without these and other precautions, this experiment could easily be very dangerous, as you can imagine! Ben (talk) 17:21, 2 June 2014 (UTC)
From long experience, I would have done this alone, out in a field, with no one besides myself, and a friend with the volunteer fire department on standby (if at all). Indoors? People watching? School setting? Not a chance in... well, what the picture reminds you of. And this from one who has made, used, and quenched every RLi reagent commercially available (and some not), who has done neat Et2Zn additions from cylinder at building leveling scales. I just have this thing about not killing innocents, or torching taxpayer-funded venues, if I can avoid.One has to wonder if the school principle was in the market for a new building. mdr Le Prof Leprof 7272 (talk) 23:54, 10 June 2014 (UTC)

## File:Acetylacetone-enol-3D-balls.png pi-bond position

Hope you don't mind the change I made to your image--feel free to undo if so, and I'll upload it to a different name. I usually have a heck of a time getting these to go where I want in modelling software, so I just gimped it. DMacks (talk) 16:26, 2 June 2014 (UTC)

Hi DMacks, no problem, looks much better. Thanks! Ben (talk) 16:57, 2 June 2014 (UTC)

## Software used for File:NaCp-chain-from-xtal-3D-balls-C.png

Hi, what software did you use to obtain File:NaCp-chain-from-xtal-3D-balls-C.png? ScotXW (talk) 10:38, 9 June 2014 (UTC)

Hi ScotXW, I forgot to add my usual line to the image description file, so here it is: "image generated in Accelrys DS Visualizer."
Do you need any further information or assistance? I've prepared a step-by-step guide to making images using this software, it's at en:User:Benjah-bmm27/MakingMolecules.
Cheers, Ben (talk) 13:23, 9 June 2014 (UTC)

## First collaboration?

This is too easy, but it would see immediate use (same day insertion into articles). See this image: [6], and these sources for context [7] and [8]. Could you consider creating an image just like this (numbered and bay region labeled)? Nearly exact replica is fine, Chemdraw Evans template preferred, and I would use small bold numbers, sans serif font like Arial, and soften the colour (e.g., to a web-safe maroon like 660000 or 990000, rather than a pure red). A 3D model of your usual quality could and should eventually follow, but the flat line-angle is all that is needed immediately. Cheers, TY in advance, Le Prof Leprof 7272 (talk) 18:37, 12 June 2014 (UTC)

How's this? Ben (talk) 09:13, 13 June 2014 (UTC)
I would prefer the background to be transparent and maybe to have the atom numbers colored in blue. --Leyo 00:50, 14 June 2014 (UTC)

## File:Acetonitrile-skeletal.png

 File:Acetonitrile-skeletal.png has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

Kopiersperre (talk) 15:00, 3 July 2014 (UTC)

## File:Methane-2D-flat-small.png

 File:Methane-2D-flat-small.png has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

JuTa 07:52, 13 July 2014 (UTC)

## File:Methane-CRC-MW-3D-vdW.png

 File:Methane-CRC-MW-3D-vdW.png has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

JuTa 07:56, 13 July 2014 (UTC)

## Add an H to File:Glyphosate-3D-vdW.png?

Looks like this structure is seen from a perspective where only one of the phosphonic acid hydrogen atoms is visible, with the other either omitted or at best hidden behind its oxygen. Could you re-orient this structure a bit so that both can be seen, analogous to File:Glyphosate-3D-balls.png and the various skeletal diagrams in Category:Glyphosates? DMacks (talk) 18:57, 31 August 2014 (UTC)

## Incorrect stereochemistry of (S)-fluoxetine

The file File:(S)-fluoxetine-3D-balls.png's geometry is currently under dispute, I asked more experienced chemists than myself before I added this dispute on this structure's commons page. The discussion I've had so far on its stereochemistry may be found here [9]. Thanks for your time. Brenton (talk) 18:31, 17 October 2014 (UTC)

Thanks Brenton, I agree with you on this. I've swapped File:R-fluoxetine-3D-balls.png and File:S-fluoxetine-3D-balls.png over. Cheers, --Ben (talk) 22:27, 17 October 2014 (UTC)

## Incorrect amine chemistry of bortezomib

Hi Ben, I've noticed File:Bortezomib-from-PDB-2F16-3D-balls.png has a hydrogen attached to the position #1 nitrogen in the pyrazine ring when simple valency rules say said hydrogen should not exist which it doesn't in this 2D structure File:Bortezomib.svg. I realize this hydrogen was probably there in the original PDB but still, just thought you'd like to know. Plus out of curiosity is there a reason why you don't crop your 3D structures? By that I mean in your structures there is plenty of empty space, so I wonder why you don't just crop them as it would make it easier to fit them into drugboxes & chemboxes. Don't get me wrong, I am grateful for your images, they're great, but still giving my two cents worth on how you might improve them. Thanks for your time. Brenton (talk) 06:32, 26 November 2014 (UTC)

Hi Brenton, thanks for highlighting this issue. I'll see if I can recreate the image without the proton. I assume it was present in the PDB file, but I can't open it on this computer at present.
Regarding the space around my images, I deliberately add a 5% margin around each image to comply with en:Wikipedia:Manual of Style/Chemistry/Structure drawing#Generating PNG files. This is important as it creates white space that makes the images look neater when on the page. Do you think Chemboxes would be better without white space? If so, we can discuss it at en:WT:CHEMISTRY. Cheers, --Ben (talk) 11:15, 26 November 2014 (UTC)

You have a bunch, such as File:NAD-2FM3-skeletal-3D-balls.png that note the origin of the conformation being illustrated. I'm working on an en.wp article about their geometry and found that these:

do not cite or explain their origin. It seems to be pretty important for some inter- and intramolecular aspects of the reactivity (and possibly highly variable depending on what else is bound...see [[[en:Nicotinamide adenine dinucleotide#Oxidoreductase binding of NAD]] and its associated talkpage if you're interested). DMacks (talk) 19:40, 28 November 2014 (UTC)

Hi DMacks, interesting project. These three images you list are just really badly minimised structures based on skeletal formulae. I should really sort those out - thanks for letting me know. --Ben (talk) 23:03, 28 November 2014 (UTC)

## Wikipedia 'List of cocaine analogues' article images needed

Hello,

I notice you make a lot of molecular structure 2D images. I am currently restricted to a library computer and cannot make images for upload.

I was wondering if you could assist me in my endeavor of adding certain images for inclusion at the Wikipedia 'List of cocaine analogues' page.

What I need is mostly those from Singh's SAR of Cocaine paper (45 pages in on the page finder; pg. 970 or so as enumerated on the paper itself: the chemical structures 183a-(through)-d, 184a & b, 185a-d, 186-188 on 'Scheme 42', on pg. 50 (974) structures 196a-o, 197a-g, 198a-e, 199a & b, 200 & 201a-e ... and more down to page 61 or so; namely N-modified analogs & such.)

Any help making these would be greatly appreciated. Nagelfar (talk) 21:46, 24 February 2015 (UTC)

## DMSO geometry

Hi Ben! The accuracy of your DMSO image on double bond has been questioned. Do you have a source for the data used? I like these sort of images a lot so I hope we can put the image back with a source or perhaps we should consult the literature for other data. Thanks! V8rik (talk) 18:16, 9 March 2015 (UTC)

Hi V8rik, thanks very much for highlighting this discussion. I must have made an error, which I should be able to fix soon. Cheers! --Ben (talk) 19:04, 9 March 2015 (UTC)

## File:Acetic-acid-2D-skeletal.png

 File:Acetic-acid-2D-skeletal.png has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

Kopiersperre (talk) 09:51, 3 May 2015 (UTC)

## The factual accuracy of the chemical structure File:Cyclopyrrolone-2D-skeletal.png is disputed

 Dispute notification The chemical structure File:Cyclopyrrolone-2D-skeletal.png you uploaded has been tagged as disputed and is now listed in Category:Disputed chemical diagrams. Files in this category are deleted after one month if there is no upload of a corrected version and if there is no objection from the uploader or other users. Please discuss on the file talk page if you feel that the dispute is inappropriate. If you agree with the dispute, you can either upload a corrected version or simply allow the file to be deleted. In all cases, please do not take the dispute personally. It is never intended as such. Thank you! --DMacks (talk) 14:30, 7 May 2015 (UTC)

## File:Iron(III)-nitrate-nonahydrate-sample.jpg

 File:Iron(III)-nitrate-nonahydrate-sample.jpg has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry. If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

Michał Sobkowski (talk) 09:39, 24 June 2015 (UTC)