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Figure 1
The three postulated outcomes of co-crystallizations with a monotopic acceptor (X = halogen-bond donor; H = hydrogen-bond donor, A = halogen-/hydrogen-bond acceptor).

IUCrJ
Volume 2| Part 5| September 2015| Pages 498-510
ISSN: 2052-2525
https://doi.org/10.1107/S2052252515010854