title: Hexakis(1H-imidazole-κN)cobalt(II) triaqua-tris(1H-imidazole-κN)cobalt(II) bis-(naphthalene-1,4-dicarboxyl-ate).
abstract: The asymmetric unit of the title compound, [Co(C(3)H(4)N(2))(6)][Co(C(3)H(4)N(2))(3)(H(2)O)(3)](C(12)H(6)O(4))(2), contains two halves of crystallographically independent Co(II) complex cations, each assuming a distorted octa-hedral geometry, and one uncoordinated naphthalene-1,4-dicarboxyl-ate dianion. One Co(II) cation is located on an inversion center and is coordinated by six imidazole mol-ecules, while the other Co(II) cation is located on a twofold rotation axis and is coordinated by three water and three imidazole mol-ecules. The uncoordinated naphthalene-1,4-dicarboxyl-ate dianion links both Co(II) complex cations via O-H⋯O and N-H⋯O hydrogen bonding. One imidazole ligand is equally disordered over two sites about a twofold rotation axis, while the coordinated N atom of the imidazole is located on the twofold rotation axis. One water O atom has site symmetry 2.
authors.affiliation: Department of Chemistry, Zhejiang University, People's Republic of China.
authors.forename: Jing-Jing
authors.initials: JJ
authors.lastname: Nie
authors.forename: Jun-Hua
authors.initials: JH
authors.lastname: Li
authors.forename: Duan-Jun
authors.initials: DJ
authors.lastname: Xu