Poly[[(N,N-dimethylformamide-κO)(μ₃-pyrazine-2,3-dicarboxylato-κ⁴N¹,O²:O³:O³)copper(II)] monohydrate]

Abstract

In the title compound, {[Cu(C6H2N2O4)(C3H7NO)]·H2O}n, the Cu(II) atom is coordinated by an N,O-bidentate pyrazine-2,3-dicarboxyl­ate (pzdc) dianion, two O atoms from two other pzdc anions and one O atom from the dimethlyformamide ligand, forming a distorted square-pyramidal CuNO4 geometry. The polymeric character of the structure is established by the formation of layers parallel to (100) via bridging pzdc ligands. O—H⋯O hydrogen bonding between water mol­ecules and uncoordinated carboxyl­ate O atoms leads to additional stabilization of the structure.