catena-Poly[[[aqua(pyrazino[2,3-f][1,10]phenanthroline-κ²N⁸,N⁹)zinc(II)]-μ-pentanedioato] monohydrate]

Abstract

In the title compound, {[Zn(C5H6O4)(C14H8N4)(H2O)]·H2O}n, the Zn2+ ion is coordinated by an N,N′-bidentate pyrazino­[2,3-f][1,10]phenanthroline (pyphen) ligand, a water molecule and a monodentate glutarate (glu) dianion. A symmetry-generated O:O′-bidentate glu dianion completes a distorted cis-ZnN2O4 octa­hedral coordination geometry for the metal ion. The bridging glu species generates [110] polymeric chains in the crystal. O—H⋯O hydrogen bonds involving both the coordinated and uncoordinated water mol­ecules help to consolidate the structure and neighbouring pyphen units inter­act through numerous aromatic π–π inter­actions [minimum centroid–centroid separation = 3.654 (3) Å], resulting in a two-dimensional network.