Acta Crystallographica Section E (Jun 2011)
Poly[diaqua(μ4-benzene-1,2,4,5-tetracarboxylato)[μ2-1,4-bis(3-pyridylmethyl)piperazine]dizinc(II)]
Abstract
In the title compound, [Zn2(C10H2O8)(C16H20N4)(H2O)2]n, the ZnII atom is in a distorted tetrahedral environment, being coordinated by one N atom from a 1,4-bis(3-pyridylmethyl)piperazine (3-bpmp) ligand, two O atoms from two carboxylate groups of the pyromellitate anion and one water molecule. The distortion of the tetrahedral coordination may be ascribed to the hydrogen bonds between the carboxylate groups and the adjacent water molecules. Each ZnII atom links to three organic ligands and each pyromellitate ligand coordinates to four ZnII atoms, forming a (3,4)-connected infinite three-dimensional framework. O—H...N interactions also occur.