Poly[bis(μ-4-amino­benzene­sulfonato-κ2N:O)di­aquacobalt(II)]

The title compound, [Co(C6H6NO3S)2(H2O)2]n, was obtained from a mixture of Co(NO3)2·6H2O and a previously synthesized salt, namely CyNH3·NH2PhSO3, in a 1:1 ratio (Cy = cyclo­hexyl; Ph = phen­yl). The crystal structure consists of a three-dimensional supra­molecular framework, in which polymeric layers are inter­connected via N—H⋯O and O—H⋯O hydrogen bonding. The polymeric layers are formed by an inter­connection of neighbouring cobalt(II) cations via NH2PhSO3− bridges. Each cobalt(II) cation is surrounded by four NH2PhSO3− moieties and two water mol­ecules, leading to a distorted octa­hedral environment.Unlabelled Image