Abstract
In the title polymeric complex, {[Zn(C24H22N6O2)(H2O)4](NO3)2·2H2O}n, the ZnII cation, located about a twofold rotation axis, is coordinated by two imidazole groups and four water molecules in a distorted N2O4 octahedral geometry; among the four coordinate water molecules, two are located on the same twofold rotation axis. The 1,4-bis[4-(1H-imidazol-1-yl)benzoyl]piperazine] ligand is centro-symmetric, with the centroid of the piperazine ring located on an inversion center, and bridges the ZnII cations, forming polymeric chains propagating along [201]. In the crystal, O—H⋯O and weak C—H⋯O hydrogen bonds link the polymeric chains, nitrate anions and solvent water molecules into a three-dimensional supramolecular architecture. A short O⋯O contact of 2.823 (13) Å is observed between neighboring nitrate anions.
Highlights
In the title polymeric complex, {[Zn(C24H22N6O2)(H2O)4](NO3)2Á2H2O}n, the ZnII cation, located about a twofold rotation axis, is coordinated by two imidazole groups and four water molecules in a distorted N2O4 octahedral geometry; among the four coordinate water molecules, two are located on the same twofold rotation axis
The 1,4-bis[4-(1H-imidazol1-yl)benzoyl]piperazine] ligand is centro-symmetric, with the centroid of the piperazine ring located on an inversion center, and bridges the ZnII cations, forming polymeric chains propagating along [201]
A short OÁ Á ÁO contact of 2.823 (13) Ais observed between neighboring nitrate anions
Summary
In the title polymeric complex, {[Zn(C24H22N6O2)(H2O)4](NO3)2Á2H2O}n, the ZnII cation, located about a twofold rotation axis, is coordinated by two imidazole groups and four water molecules in a distorted N2O4 octahedral geometry; among the four coordinate water molecules, two are located on the same twofold rotation axis. College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People’s Republic of China. Received 3 April 2015; accepted 19 April 2015
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