title: Bis(piperazine-1,4-diium) hexa-chlorido-bismuthate(III) chloride monohydrate.
abstract: The crystal structure of the title compound, (C(4)H(12)N(2))(2)[BiCl(6)]Cl·H(2)O, consists of piperazinediium cations, [BiCl(6)](3-) anions, Cl(-) anions and uncoordinated water mol-ecules. The Bi(III) cation is coordinated by six Cl(-) anions in a slightly distorted octa-hedral geometry. The diprotonated piperazine ring adopts a chair conformation. In the crystal, extensive inter-molecular N-H⋯Cl, N-H⋯O and O-H⋯Cl hydrogen bonds occur.
authors.affiliation: School of Biology and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003,  People's Republic of China.
authors.forename: Yu-Hua
authors.initials: YH
authors.lastname: Gao
authors.forename: Xiao-Jia
authors.initials: XJ
authors.lastname: Liu
authors.forename: Lei
authors.initials: L
authors.lastname: Sun
authors.forename: Wen-Jun
authors.initials: WJ
authors.lastname: Le