1,3-Bis(pyridin-2-yl)-1H-benzimidazol-3-ium tetrafluoridoborate

Abstract

The asymmetric unit of the title compound, C 17H 13N 4+·BF4 -, contains one half of the benzimidazolium cation and one half of the tetra-fluoridoborate anion, with crystallographic mirror planes bis-ecting the molecules. One F atom of the tetra-fluoridoborate is equally disordered about a crystallographic mirror plane. In the crystal, C - H⋯F interactions link the cations and anions into layers parallel to (100). The crystal packing is further stabilized by F⋯π contacts involving the tetra-fluoridoborate anions and the five-membered rings [F⋯centroid = 2.811 (2) Å].