Results and Discussion To ascertain whether there is a statistical trend toward an increase in the halogen-bond probability with addition of a positive charge on a halogenopyridine ring, we have performed a Cambridge Structural Database 80 (version 5.42 Update 3 (May 2021) CSD database using ConQuest Version 2020.3.0) survey of structures that comprise a halogen substituent on an aromatic nitrogen heterocycle.
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