catena-poly[[[diaquacobalt(II)]-μ-(E)-1,2-bis(4-pyridyl)ethylene-κ2N:N′]bis(4-aminobenzenesulfonate) hexahydrate]

In the title compound, {[Co(C12H10N2)(H2O)(2)](C6H6NO3S)(2)center dot-6H(2)O}(n), a cobalt coordination polymer, the repeat unit comprises a cobalt complex cation, two 4-aminobenzenesulfonate anions and six uncoordinated water molecules. In the doubly charged cobalt cation, each Co atom lies on a center of symmetry and is six-coordinated in a distorted octahedral geometry formed by four O atoms of four coordinated water molecules, and two N atoms from two (E)-1,2-bis(4-pyridyl) ethylene (bpe) ligands. The bpe ligands bridge the Co atoms, forming a one-dimensional linear chain. Intermolecular O-H center dot center dot center dot O, O-H center dot center dot center dot N and N-H center dot center dot center dot O hydrogen-bonding interactions stabilize this chain structure.