No abstract

Key indicators: single-crystal X-ray study; T = 296 K; mean (C-C) = 0.010 Å; R factor = 0.047; wR factor = 0.149; data-to-parameter ratio = 14.5.The title compound, [Cu(C 8 H 7 O 2 )(C 10 H 8 N 2 ) 2 ]IÁ0.5H 2 O, was obtained by the hydrothermal reaction of copper(I) iodide, 4-methylbenzoic acid and 2,2 0 -bipyridine. The initial reactant of Cu I was oxidized to Cu II . The asymmetric unit contains two independent complex molecules, two I À 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 0 -bipyridine ligands, displaying a distorted octahedral geometry.