Acta Cryst. (2002). E58, m107-m109  [ doi:10.1107/S1600536802002799 ]

Dibromotetrakis(4-methylimidazole)copper(II) dihydrate

C. Näther, M. Wriedt and I. Jeß

Abstract: In the structure of the title compound, [CuBr₂(C₄H₆N₂)₄]·2H₂O, the Cu^II 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 Cu^II cations can be described as strongly distorted octahedral. There are two crystallographically independent half-complexes in the asymmetric unit, in which the Cu^II 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-HBr, N-HO and O-HO hydrogen bonding.

Online 22 February 2002

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