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Anion−π Interactions in Crystal Structures: Commonplace or Extraordinary?

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journal contribution
posted on 03.06.2009, 00:00 by Benjamin P. Hay, Radu Custelcean
An in-depth analysis of the distribution of anions about planar six-membered rings in the Cambridge Structural Database reveals anion−π interactions with charge-neutral π systems to be extremely rare in crystal structures. The predominant interaction motif is C−H···anion hydrogen bonding.