title: [N,N,N',N'-Tetra-kis(benzimidazol-2-yl-meth-yl)cyclo-hexane-1,2-diamine]-nickel(II) dinitrate dihydrate.
abstract: In the title compound, [Ni(C(38)H(38)N(10))](NO(3))(2)·2H(2)O, the Ni(II) ion is located on a crystallographic twofold rotation axis and is in a distorted octa-hedral coordination environment. The crystal structure is stablized by inter-molecular N-H⋯O and C-H⋯O hydrogen bonds, and weak C-H⋯π inter-actions. The O atoms of the unique nitrate ion are disordered over two sites with occupancies of 0.63 (1) and 0.37 (1). In addition, the O atom of the unique solvent water mol-ecule is disorded over two sites with equal occupancies.
authors.affiliation: Department of Chemical and Biological Science, Xiangfan University, Xiangfan 441053, People's Republic of China.
authors.forename: Dan
authors.initials: D
authors.lastname: Zhan
authors.forename: Zuo-An
authors.initials: ZA
authors.lastname: Xiao