title: Diaqua-bis(2,2'-biimidazole)cobalt(II) dichloride.
abstract: There are independent cations and four chloride anions in the crystal structure of the title complex, [Co(C(6)H(6)N(4))(2)(H(2)O)(2)]Cl(2). In each cation, the Co(II) cation is coordinated by four N atoms from two biimidazole and two O atoms of two water mol-ecules; one Co atom is at a position of site symmetry m, the other at a position of site symmetry 2/m. All Cl(-) ions and water mol-ecules are also located on the mirror plane. Each structural unit is connected through O-H⋯Cl and N-H⋯Cl inter-molecular hydrogen bonds, forming a three-dimensional supramolecular structure.
authors.forename: Lan-Cui
authors.initials: LC
authors.lastname: Zhang
authors.forename: Zai-Ming
authors.initials: ZM
authors.lastname: Zhu
authors.forename: Wan-Sheng
authors.initials: WS
authors.lastname: You
authors.forename: Song
authors.initials: S
authors.lastname: Chang
authors.forename: En-Bo
authors.initials: EB
authors.lastname: Wang