A generalized form of the London expression for dispersion forces is derived for polyatomic molecules. The approach enables the calculation of the dispersion forces between all electron centres whether they are bonded atoms, π-bond electrons or single electrons. The latent heats of vaporization of an extensive range of molecules are predicted and found to be in good agreement with the experimental values.
J. Homer and M. S. Mohammadi, J. Chem. Soc., Faraday Trans. 2, 1987, 83, 1957 DOI: 10.1039/F29878301957
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