This analysis reveals intriguing dispersion bonds in molecules, suggesting new insights into non-bonded interactions.
In the previous post, I noted the crystallographic detection of an unusually short non-bonded H…H contact of ~1.5Å, some 0.9Å shorter than twice the van der Waals radius of hydrogen (1.2Å, although some sources quote 1.1Å which would make the contraction ~0.7Å). This was attributed to dispersion attractions accumulating in the rest of the molecule.
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Henry S. Rzepa (2017) studied this question.
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