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Figure 6
Atom⋯atom RGBIs, including covalent, ionic and total, versus the difference in Hirshfeld charge of the acceptor atoms (absolute values in a.u.) between dimers and monomers (Δq) for (a) hydrogen bonds, and (b) halogen- and chalcogen-bonding interactions. For ionic bond indices, we plot the absolute values.

IUCrJ
Volume 5| Part 5| September 2018| Pages 635-646
ISSN: 2052-2525
https://doi.org/10.1107/S2052252518010758