catena-Poly[[[aqua­(pyridine-2,6-dicarboxyl­ato N-oxide-κ(2) O (1),O (2))cobalt(II)]-μ-1,3-di-4-pyridylpropane-κ(2) N:N′] dihydrate]

In the title compound, {[Co(C(7)H(3)NO(5))(C(13)H(14)N(2))(H(2)O)]·2H(2)O}(n), the Co(II) atom is coordinated by two O atoms from a pyridine-2,6-dicarboxyl­ate N-oxide ligand, two N atoms from two 1,3-di-4-pyridylpropane ligands and one water mol­ecule, and displays a distorted square-pyramidal coordination geometry. The 1,3-di-4-pyridylpropane ligands link the Co(II) atoms into an infinite zigzag chain parallel to [010]. The chains are further linked through O—H⋯O and C—H⋯O hydrogen bonds, forming a three-dimensional supra­molecular network.