Research Article: Diaqua­(2,2′-bipyridine-6,6′-dicarboxyl­ato)nickel(II)

Date Published: June 01, 2011

Publisher: International Union of Crystallography

Author(s): Shui Hu, ShiPeng Wen, Huai-Ming Hu, Li Liu.


In the title compound, [Ni(C12H6N2O4)(H2O)2], the NiII atom (site symmetry 2) displays a distorted cis-NiN2O4 octa­hedral coordination geometry with two N atoms and two O atoms of the tetra­dentate 2,2′-bipyridine-6,6′-dicarboxyl­ate ligand in the equatorial plane and two water mol­ecules in axial positions. The complete dianionic ligand is generated by crystallographic twofold symmetry. In the crystal, a two-dimensional supra­molecular structure parallel to (001) is formed through O—H⋯O hydrogen-bond inter­actions between the coordinated water mol­ecules and the O atoms of nearby carboxyl­ate groups.

Partial Text

For transition metal complexes with the title ligand, see: Knight et al. (2006 ▶); Duan et al. (2009 ▶); Wang et al. (2009 ▶). For lanthanide metal complexes with the title ligand, see: Bunzli et al. (2000 ▶); Wang et al. (2010 ▶).




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