Research Article: μ-Oxalato-κ4O1,O2:O1′,O2′-bis­[diaqua­(2,2′-bipyridyl-κ2N,N′)zinc] bis­[2-(1H-benzotriazol-1-yl)acetate] hexa­hydrate

Date Published: February 01, 2012

Publisher: International Union of Crystallography

Author(s): Ling Zeng, Qinglin Wang.


The asymmetric unit of the title compound, [Zn2(C2O4)(C10H8N2)2(H2O)4](C8H6N3O2)2·6H2O, contains one half of the centrosymmetric binuclear cation, one anion and three water mol­ecules. In the cation, the oxalate ligand bridges two ZnII ions in a bis-bidentate fashion, so each ZnII ion is coordinated by two O atoms from the oxalate ligand, two N atoms from two 2,2′-bipyridine ligands and two water mol­ecules in a distorted octa­hedral arrangement. The mean planes of the oxalate and 2,2′-bipyridine ligands form a dihedral angle of 80.0 (1)°. An extensive three-dimensional hydrogen-bonding network formed by classical O—H⋯O and O—H⋯N inter­actions consolidates the crystal packing.

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For applications of oxalate complexes, see: Decurtins et al. (1994 ▶); Liu et al. (2009 ▶). For related structures, see: Sun et al. (2009 ▶); Zheng et al. (2010 ▶).