Research Article: Poly[diaqua­(μ4-benzene-1,2,4,5-tetra­carboxyl­ato)[μ2-1,4-bis­(3-pyridyl­meth­yl)piperazine]dizinc(II)]

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.

Partial Text

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 ▶).




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