Acta Cryst. (2008). E64, m1111-m1112  [ doi:10.1107/S1600536808024252 ]

Bis(2,2'-bipyridine-²N,N')(4-methylbenzoato-²O,O')copper(II) iodide hemihydrate

C.-M. Tang and G.-H. Deng

Abstract: The title compound, [Cu(C₈H₇O₂)(C₁₀H₈N₂)₂]I·0.5H₂O, was obtained by the hydrothermal reaction of copper(I) iodide, 4-methylbenzoic acid and 2,2'-bipyridine. The initial reactant of Cu^I was oxidized to Cu^II. The asymmetric unit contains two independent complex molecules, two I^- ions and one water molecule. Each Cu^II atom is coordinated by two O atoms from a 4-methylbenzoate ligand and four N atoms from two 2,2'-bipyridine ligands, displaying a distorted octahedral geometry. The structure involves O-HI hydrogen bonds between the water molecule and iodide ions and - stacking interactions between the benzene and pyridyl rings [centroid-centroid distance = 3.79 (1) Å] and between the pyridyl rings [centroid-centroid distance = 3.87 (1) Å].

Online 6 August 2008

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