Diaqua[5,5′-dicarboxy-2,2′-(propane-1,3-diyl)bis(1H-imidazole-4-carboxylato)]nickel(II) dihydrate

Abstract

In the title complex, [Ni(C13H10N4O8)(H2O)2]·2H2O, the Ni2+ cation is six-coordinated by two N atoms and two O atoms from the tetradentate anion in equatorial positions and by two water O atoms in axial positions, leading to a distorted octahedral environment. The central C atom of the propanediyl unit is disordered over two sites in a 0.531 (6):0.469 (6) ratio. In the crystal, adjacent molecules are linked through O—H...O and N—H...O hydrogen-bonding interactions into a three-dimensional network.