catena-Poly[[aqua­(2,2′-bipyridine-κ(2) N,N′)copper(II)]-μ-5-nitro­isophthalato-κ(3) O (1),O (1′):O (3)]

In the asymmetric unit of the title compound, [Cu(C(8)H(3)NO(6))(C(10)H(8)N(2))(H(2)O)](n), there are two symmetry-independent one-dimensional coordination polymers related by a non-crystallographic inversion center. Within the polymers, the Cu(II )atoms, coordinated by the water mol­ecule and the chelating 2,2′-bipyridine ligands, are bridged by 5-nitro­benzene-1,3-dicarboxyl­ate dianions which act as tridentate ligands; the carboxyl­ate groups exhibit monodentate and symmetric bidentate coordination modes. The Cu(II) atoms show a strongly distorted octa­hedral coordination geometry. In the crystal structure, the two symmetry-independent coordination polymers form another one-dimensional polymeric structure via O—H⋯O hydrogen bonds between coordinated water mol­ecules and carboxyl­ate groups.