Poly[[aqua(2,2′-bipyridine)(μ3-pyridine-3,4-dicarboxylato)nickel(II)] monohydrate

Abstract

The asymmetric unit of the title compound, {[Ni(C7H3NO4)(C10H8N2)(H2O)]·H2O}n, contains one nickel cation chelated by a 2,2′-bipyridine ligand and further coordinated by two monodentate carboxyl­ate groups belonging to two independent pyridine-3,4-dicarboxyl­ate ligands and one water mol­ecule. The NiII atom is six-coordinate, exhibiting octa­hedral geometry with three N and three O atoms. Each pair of neighbouring NiII cations is bridged by two independent pyridine-3,4-dicarboxyl­ate ligands, which are coordinated to two further NiII cations through pyridine N atoms to give corrugated layers parallel to the (110) plane. The coordinated and uncoordinated water mol­ecules act as donors in O—H⋯O hydrogen bonds.