The pentafluorophenyl group as π-acceptor for anions: a case study.

ABSTRACT: The present study gives a comprehensive insight into anion-π interactions in the solid state, focusing on purely organic and charge-neutral fluorophenyl groups bearing a positive charge located at a side chain. The detailed statistical analysis of a series of structural data sets shows the geometrical variability of anion-π bonding in the solid state. It reveals the directing substituents at the arene as key elements for the positional preferences of anions above π-systems. The structural variety of the interaction between anions and electron-deficient arenes is considered by use of the hapticity concept. Together with new evaluation criteria, two helpful tools to understand and describe anion-π interactions in the solid are used.

SUBMITTER: Giese M 

PROVIDER: S-EPMC5586208 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature