Research Article: Tetra­aqua­(2,2′-bipyridine-κ2N,N′)nickel(II) sulfate

Date Published: July 01, 2012

Publisher: International Union of Crystallography

Author(s): Sujirat Boonlue, Chatphorn Theppitak, Kittipong Chainok.


The asymmetric unit of the title complex, [Ni(C10H8N2)(H2O)4]SO4, consists of a complex [Ni(bipy)(H2O)4]2+ cation (bipy = 2,2′-bipyridine) and a non-coordinating [SO4]2− anion. The NiII atom is six-coordinated in a distorted octa­hedral geometry defined by the two N atoms of the bipy ligand and four water O atoms. The crystal structure contains extensive classical O—H⋯O hydrogen bonds, which link the ions into a two-dimensional array in the ab plane. Layers are connected into a three-dimensional supra­molecular structure by C—H⋯O inter­actions.

Partial Text

For the structures and properties of coordination complexes with bipy as a ligand, see: Graaf & Sousa (2010 ▶); Baruah et al. (2007 ▶); Schubert & Eschbaumer (2002 ▶); Harvey et al. (1999 ▶); Damrauer et al. (1997 ▶); Healy et al. (1984 ▶)




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