File:NTCDI AFM.jpg

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Description (a) Ball-and-stick model of NTCDI with a partial charge density isosurface superimposed (Colour coding: grey, carbon; white, hydrogen; red, oxygen; blue, nitrogen); (b) Constant height DFM image of a hydrogen-bonded NTCDI island on the Ag:Si(111)- (√3 x √3) R30° surface acquired at 77 K. Image size 2.1 by 2.0 nm (oscillation amplitude, 275 pm); (c) Overlay of the model of NTCDI on a contrast-adjusted section of the image shown in b. The primary intermolecular H bonds (N-H˙˙˙O) are shown as black lines. (d–g) Series of DFM images of a different NTCDI island taken at 5 K with progressively smaller tip-sample separations and an oscillation amplitude of 110 pm. Tip-sample separations, (i.e. Δ)z, relative to that associated with the Δf setpoint used for atom tracking (that is, Δz=0) are (d) −17 pm, (e) −67pm, (f) −125 pm and (g) −175 pm. Image size 3.3 by 3.3 nm.
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Source http://www.nature.com/ncomms/2014/140530/ncomms4931/full/ncomms4931.html
Author A. M. Sweetman et al.
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current03:24, 10 November 2015Thumbnail for version as of 03:24, 10 November 2015946 × 451 (105 KB)Materialscientist (talk | contribs){{Information |Description=(a) Ball-and-stick model of NTCDI with a partial charge density isosurface superimposed (Colour coding: grey, carbon; white, hydrogen; red, oxygen; blue, nitrogen); (b) Constant height DFM image of a hydrogen-bonded NTCDI isl...

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