Date Published: June 01, 2011
Publisher: International Union of Crystallography
Author(s): Hui-Feng Zhang, Yan Li, Wen-Xiu Zhao, Liang-Zhong Zhao, Duo Zhang.
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.
For a coordination polymer containing 3-bpmp, see: Martin et al. (2009 ▶). For the preparation of N,N-bis(3-pyridylmethyl)piperazine, see: Pocic et al. (2005 ▶). 3-bpmp and its derivatives are important heteroaromatic N-donor bridging ligands for the construction of coordination polymers, see: Farnum & LaDuca (2010 ▶).