catena-Poly[[[diaqua­copper(II)]-bis­(μ(2)-di-4-pyridyl disulfide-κ(2) N:N′)] bis­(hydrogen phthalate) monohydrate]

The asymmetric unit of the title compound, {[Cu(C(10)H(8)N(2)S(2))(2)(H(2)O)(2)](C(8)H(5)O(4))(2)·H(2)O}(n), contains one Cu(II) ion, two bridging di-4-pyridyl disulfide (4-DPDS) ligands of the same chirality, two coordinating water mol­ecules, two hydrogen phthalate anions and one uncoordinated water mol­ecule. The polymeric structure consists of two types of polymeric chains, each composed from repeated chiral rhomboids. The Cu(II) ions adopt a distorted octa­hedral coordination geometry and are coordinated by four pyridine N atoms and two water O atoms. The coordinated water mol­ecules and hydrogen phthalate anions are located between the repeated rhomboidal chains, and form hydrogen bonds with the coordinated water mol­ecules.