Date: 03 Nov 2011

Intermolecular Interaction Energies from Experimental Charge Density Studies

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The estimation of intermolecular interaction energies from experimental charge densities, obtained by high resolution X-ray crystallographic measurements, is overviewed. Two main approaches are explored: one based on the conventional theory of intermolecular forces and using the charge density functions directly to deduce electrostatic and possibly other contributions of the total interaction energy, and another involving the characterization of interaction strengths from local properties determined at critical points in the total electron density.