title: trans-Tetra-aqua-bis-[1,3-bis-(4-pyrid-yl)propane-κN]cobalt(II) biphenyl-4,4'-disulfonate monohydrate.
abstract: In the title compound, [Co(C(13)H(14)N(2))(2)(H(2)O)(4)](C(12)H(8)O(6)S(2))·H(2)O, the cation, anion and uncoordinated water mol-ecule have crystallographically imposed twofold symmetry. The cobalt(II) atom exhibits a slightly distorted octa-hedral coordination geometry provided by two N atoms from two 1,3-bis-(4-pyrid-yl)propane ligands and the O atoms from four water mol-ecules. The dihedral angle between the pyridine rings in the ligand is 86.14 (11)°, whereas the dihedral angle formed by the symmetry-related benzene rings in the anion is 35.81 (12)°. In the crystal, cations, anions and water mol-ecules are linked into layers parallel to the ac plane by O-H⋯O and O-H⋯N hydrogen-bond inter-actions. The layers are further connected into a three-dimensional network by C-H⋯O hydrogen bonds.
authors.affiliation: School of Chemistry and Chemical Engineering, Anqing Normal University, Anqing 246003, People's Republic of China.
authors.forename: Guang-Xiang
authors.initials: GX
authors.lastname: Liu
authors.forename: Xu-Yong
authors.initials: XY
authors.lastname: Xu