Intermolecular interaction coefficients using point charge models

Values of the two-body interaction coefficientsC6 andd4 between like species, as well as the three-body term 3, are obtained from point charge model formulae. Lewis set results may be compared with atomically centered wave-function values as well as results obtained using an experimental point charge model. Generally results are in good agreement with experiment and when theoretical values differ wildly from experiment they may be normalized using theoretical and experimental static polarizability values.