Posts Tagged ‘crystal structure’

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

Tuesday, October 24th, 2017

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

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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