title: 2,2'-(iminodimethylene)bis(1H-benzimidazolium)1+ chloride.
abstract: The title compound, C(16)H(16)N(5)(+).Cl(-) (nbbH(+).Cl(-)), displays N-H...N, N-H...Cl and pi-pi interactions in the crystal packing. The Cl(-) anion is chelated by the nbbH(+) cation via two N-H...Cl hydrogen bonds. Inter-ion N-H...N and N-H...Cl hydrogen bonds link ions related by 2(1) screw axes into chains along the c axis. These chains are further linked by glide-plane operations to generate a three-dimensional network, which is additionally stabilized by interchain pi-pi interactions.
authors.affiliation: School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China.
authors.forename: Sheng-Run
authors.initials: SR
authors.lastname: Zheng
authors.forename: Yue-Peng
authors.initials: YP
authors.lastname: Cai
authors.forename: Xue-Li
authors.initials: XL
authors.lastname: Zhang
authors.forename: Cheng-Yong
authors.initials: CY
authors.lastname: Su