catena-Poly[[μ-bromido-(μ-hydroxydi-2-pyridylmethanolato-κ4N,O:O,N′)dicopper(II)(Cu—Cu)]-di-μ-bromido]

Abstract

The title complex, [Cu2Br3(C11H9N2O2)]n, was one of three isolated by slow evaporation of an acetonitrile reaction mixture of CuBr2 with di-2-pyridyl ketone (1:1 molar ratio). The title complex contains a 2:1 metal-to-ligand ratio of copper(II) with the hydrated form of the ligand, di-2-pyridylmethanediol. The two copper centers are bridged by a bromide ion and the alkoxy O atom, and the Cu—Cu distance is 2.9801 (5) Å. The dimeric units are further linked by bromide ions, leading to a two-dimensional extended bridged structure. O—H...O hydrogen bonds are present in the crystal structure.