2-(3-Pyridinio)benzimidazolium pentachloridobismuthate(III) monohydrate

Abstract

In the title compound, (C12H11N3)[BiCl5]·H2O, the BiIII atom is coordinated by five chloride anions in a distorted square-pyramidal geometry. The planar imidazole ring system [maximum deviation = 0.012 (3) Å] is oriented at a dihedral angle of 6.08 (5)° with respect to the protonated pyridine ring. An O—H...Cl interaction links the water molecule to the dianion. In the crystal structure, intermolecular O—H...Cl, N—H...O and N—H...Cl interactions link the molecules into a three-dimensional network.