Dibromotetrakis(4-methylimidazole)copper(II) dihydrate
Abstract
In the structure of the title compound, [CuBr2(C4H6N2)4]·2H2O, the CuII atoms are surrounded by four 4-methylimidazole ligands within a slightly distorted square plane. The coordination sphere is completed by two contacts to bromide ligands which are elongated due to Jahn–Teller distortion. The coordination polyhedra around the CuII cations can be described as strongly distorted octahedral. There are two crystallographically independent half-complexes in the asymmetric unit, in which the CuII cations are located on centres of inversion; the two crystallographically independent 4-methylimidazole ligands, the bromide anions and the water molecules occupy general positions. The complexes are connected via N—H⋯Br, N—H⋯O and O—H⋯O hydrogen bonding.