User:Perditax
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I mostly contribute to the french wikipedia and wikibooks. In case you wish to contact me, please use this page.
From time to time, I browse categories to sort crystal structures by their space groups, with the great help of crystallographic databases when no reference is given in the file description - I do nothing when different polymorphs exist and I can't decide which one it is from looking at the picture. This is tedious work, help would be much appreciated. If you need illustrations for crystal structures, ask me!
About SVG[modifier]
My uploads[modifier]
Molecules[modifier]
Crystallography[modifier]
Cristallographie géométrique[modifier]
Images created during the writing of the wikibook Cristallographie géométrique, sorted by chapters:
- Introduction: Amorphe diffractogramme.png, Quartz diffractogramme.png, Tetrahedron in cube.png
- Translations de réseau: Réseau et motif.png
- Changement de base: Basis transformation.png, Origin change.png
- Projection stéréographique: Central angle in crystallographic projection.png, Cuboctahedron as truncated cube.png, Hexagonal Prism with crystallographic directions.svg, Plane-Sphere Intersection-fr.svg, Pole figure.png, Projection stéréographique calque.jpg, Projection stéréographique calque initial.jpg, Projection stereographique cristallographie.png, Projection stéréographique d'un plan.png, Projection stéréographique d'un polyèdre 1.png, Projection stéréographique d'un polyèdre 2.png, Projection stéréographique d'un polyèdre 3.png, Projection stéréographique d'un polyèdre 4.png, Projection stéréographique d'un polyèdre 5.png, Projection stéréographique d'une droite.png, Stereogram cuboctahedron 1.png, Stereogram cuboctahedron 2.png, Stereogram pinacoid.png, Wulff net central angle 1.jpg, Wulff net central angle 2.jpg, Wulff net central angle 3.jpg, Wulff net central angle 4.jpg, Zonenpol.jpg
- Symétrie ponctuelle: 3D point reflection.png, Lattice of pentagonal stars.svg, crystallographic symmetry symbols: 2, 3, 4, 6, 1, 3, 4, 6
- Groupes ponctuels de symétrie: 1 point group (2D).png, Group-subgroup relationship (2D).png, Group-subgroup relationship (3D).png, m point group (2D).png
- Symétrie de corps simples et molécules: Octahedron on triangular face.svg, Stereogram cube m-3m.png, Stereogram cuboctahedron m-3m.png, Stereogram octahedron m-3m.png, Stereogram square pyramid 4mm.png
- Réseaux de Bravais: Cubic cF and primitive cell 1.png, Cubic cF and primitive cell 2.png, Cubic cI and primitive cell.png, Cubic cI and primitive cell 2.png, Hexagonal hR and primitive cell.png
Crystal structures[modifier]
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Other images[modifier]
- Coordination polyhedra: Face-capped octahedron.png, Monocapped square antiprism.png, Square face bicapped trigonal prism.png, Trigonal bipyramid.png, Trigonal prism.png
- Crystallographic restriction.png and Crystallographic restriction 2.png, schemes for the demonstration of the crystallographic restriction theorem
- ICSD Evolution.png, diagram showing the evolution in time of the number of entries in the ICSD database
- Lattices: Monoclinic cell choices.png, Twin lattice (2D).png (example of a two-dimensional twin lattice)
- Mitscherlichite: NH4-Mitscherlichite.jpg, Mitscherlichite crystals.jpg
- Reciprocal space.png, reconstructed thin slice of the X-ray diffraction pattern of a crystal in the reciprocal space
- Square planar radius quotient.png, for the calculation of the critical ratio in coordination polyhedra
- Stereographic projections
- Structure solution methods: Difference Fourier map (heavy atom method).png, Heavy atom.png, Isomorphous replacement.png
- Thaumatin diffraction.png, diffraction pattern of a single crystal of the protein thaumatin in its tetragonal crystal form, recorded at the HZB MX beamline BL14.1 on a Pilatus 6M detector
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Physics[modifier]
- CubicP.png, CubicI.png, File:CubicF.png, calculated diffractograms to illustrate the effect of systematic extinctions
- Effet fontaine.png, experimental setup to observe the fountain effect with superfluid helium
- Europium neutron scattering length.png, neutron scattering length of europium
- Iodine scattering factor.png, X-ray atomic form factor of iodine
- Oxygen form factor - e & X.png, comparison of the X-ray and electron atomic form factors for oxygen
- TOF diffraction.png, principle of a time-of-flight experiment for powder neutron diffraction
- Tube Cu LiF.PNG, showing the emission spectrum of an X-ray tube with copper anode
- V & Cu radial integrals.png, radial integrals of copper and vanadium for neutron magnetic scattering
- Vecteur diffusion.png, definition of the scattering vector
Other[modifier]
- Some photos of the village where I grew up : Aups1.gif • Aups, vue du chemin Ste Catherine.jpg • Aups, vue depuis la Croix des Pins.jpg • Aups, grottes.jpg • Aups5.gif • Aups, rue de l'horloge 1.jpg • Aups, rue de l'horloge 2.jpg • Aups, rue des Aires.jpg • Aups, Porte des Aires.jpg • Aups, tour sarrasine.jpg • Aups, Fontaine Vieille.jpg • Aups, lavoir.jpg • Aups, obélisque 1, face ouest.jpg • Aups, obélisque 2, face sud.jpg • Aups, obélisque 3, face est.jpg • Aups, obélisque 4, face nord.jpg • Aups, marché 1.jpg • Aups, marché 2.jpg
- Cat playing hide-and-seek.jpg, my cat, Chipie
- Charlemagne buste.gif (see the deletion request)
- Distorted lattice.png, optical illusion
- Helsinki, statue of Alexander II.jpg • Helsinki13-Markt.jpg • Helsinki viewed from Suomenlinna.jpg
- Ras-de-cou en perles.jpg, example for fr:Bijou de fantaisie
