trans-Bis(5-carboxy-2-methyl-1H-imidazole-4-carboxylato-κ2N3,O4)copper(II)

In the title compound, [Cu(C6H5N2O4)2], the copper(II) atom lies on an inversion centre and is in an N2O2 four-coordinate environment with a nearly regular square-planar geometry. An extended network of intramolecular O—H...O and intermolecular N—H...O and C—H...O hydrogen bonds stabilizes the crystal structure