Acta Cryst. (2009). E65, m1532  [ doi:10.1107/S1600536809043189 ]

(Benzoato-O)(benzoic acid-O)(4,4'-dimethyl-2,2'-bipyridine-²N,N')hydroxidocopper(II) monohydrate

L. Yao and W.-J. Li

Abstract: In the structure of the title complex, [Cu(C₇H₅O₂)(OH)(C₁₂H₁₂N₂)(C₇H₆O₂)]·H₂O, the Cu^II ion is pentacoordinated in a tetragonal-pyramidal geometry with one O atom of a hydroxide group, one O atom of a benzoate anion and two N atoms of a 4,4'-dimethyl-2,2'-bipyridine ligand occupying the basal plane, and one O atom of a benzoic acid molecule located at the apical site. The title complex was refined with a metal-coordinated OH group and a `free' benzoic acid molecule, although it can be assumed that the proton is delocalized between the OH and the COOH group. The uncoordinated water molecule is equally disordered over two positions. The structure displays O-HO hydrogen bonding.

Online 7 November 2009

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