jp057516v_si_002.txt (4.42 kB)
Estimation of the Barrier to Rotation of Benzene in the (η6-C6H6)2Cr Crystal via Topological Analysis of the Electron Density Distribution Function
dataset
posted on 2006-05-25, 00:00 authored by Konstantin A. Lyssenko, Alexander A. Korlyukov, Denis G. Golovanov, Sergey Yu. Ketkov, Mikhail Yu. AntipinThe high-resolution X-ray diffraction analysis of the electron density distribution and plane-wave density
functional theory has been applied to estimate the lattice energy and barrier to rotation of a benzene ring in
the crystal of (η6-C6H6)2Cr. Experimental data made it possible to perform analysis of the metal−(π-ligand)
bond and estimate the nature and energy of weak H···H and H···C intermolecular interactions in the crystal.
Summation of the intermolecular H···H and H···C interaction energies makes it possible to reproduce the
experimental sublimation enthalpy value with high accuracy.