title: (S)-2-(2-Pyrrolidinio)-1H-benzimidazol-3-ium dichloride monohydrate.
abstract: In the title compound, C(11)H(15)N(3) (2+)·2Cl(-)·H(2)O, one N atom of the imidazole ring and the N atom of the pyrrolidine ring are protonated. The crystal structure is stabilized by aromatic π-π inter-actions between the benzene rings of neighbouring benzimidazole systems [centroid-centroid duistance = 3.712 (2) Å]. The crystal structure is further stabilized by inter-molecular N-H⋯Cl, O-H⋯Cl and N-H⋯O hydrogen bonds.
authors.affiliation: Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China.
authors.forename: Dai
authors.initials: D
authors.lastname: Jing