title: Tetra-aqua-(2,2'-diamino-4,4'-bi-1,3-thia-zole-κN,N)nickel(II) bis-(pyridine-2,6-dicarboxyl-ato-κO,N,O)nickel(II) trihydrate.
abstract: The crystal structure of the title compound, [Ni(C(6)H(6)N(4)S(2))(H(2)O)(4)][Ni(C(7)H(3)NO(4))(2)]·3H(2)O, consists of Ni(II) complex cations, Ni(II) complex anions and lattice water mol-ecules. The Ni(II) ions in both the complex cation and anion assume a distorted octa-hedral coordination geometry. O-H⋯O, N-H⋯O and C-H⋯S hydrogen bonds occur in the crystal structure.
authors.forename: Bing-Xin
authors.initials: BX
authors.lastname: Liu
authors.forename: Yan-Ping
authors.initials: YP
authors.lastname: Yu
authors.forename: Zen
authors.initials: Z
authors.lastname: Cao
authors.forename: Liang-Jun
authors.initials: LJ
authors.lastname: Zhang