Posts Tagged ‘crystal structure’

Elongating an N-B single bond is much easier than stretching a C-C single bond.

Tuesday, October 24th, 2017
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An N-B single bond is iso-electronic to a C-C single bond, as per below. So here is a simple question: what form does the distribution of the lengths of these two bonds take, as obtained from crystal structures? 

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Solid carbon dioxide: hexacoordinate carbon?

Friday, September 17th, 2010
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Carbon dioxide is much in the news, not least because its atmospheric concentration is on the increase. How to sequester it and save the planet is a hot topic. Here I ponder its solid state structure, as a hint to its possible reactivity, and hence perhaps for clues as to how it might be captured. The structure was determined (DOI 10.1103/PhysRevB.65.104103) as shown below.

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