catena-Poly[[diaqua­(2,2′-bipyridine-κ(2) N,N′)nickel(II)]-μ-biphenyl-2,2′-dicarboxyl­ato-κ(2) O:O′]

In the title compound, [Ni(C(14)H(8)O(4))(C(10)H(8)N(2))(H(2)O)(2)](n), the Ni(II) atom is coordinated in a slightly distorted octa­hedral geometry by two water mol­ecules, two N atoms from a 2,2′-bipyridine ligand and two O atoms from the carboxyl­ate groups of two 2,2′-biphenyl­dicarboxyl­ate (2,2′-dpa) ligands. The 2,2′-dpa ligand acts as a bridge between neighbouring Ni(II) atoms, forming one-dimensional coordination polymers along [100]. The coordinated water mol­ecules form hydrogen bonds to the carboxyl­ate O atoms of 2,2′-dpa within the same coordination polymer, and one O—H⋯π inter­action is also formed to 2,2′-dpa.