Acta Cryst. (2003). E59, m919-m920  [ doi:10.1107/S160053680301420X ]

₄-Oxo-hexa-₂-chloro-tetrakis[(benzimidazole-N)copper(II)] ethanol disolvate: a reformulation

Y.-Q. Zhang, D.-J. Xu and J.-R. Su

Abstract: The title compound [Cu₄Cl₆O(C₇H₆N₂)₄]·2C₂H₅OH, consists of the tetranuclear copper(II) complex and uncoordinated ethanol molecules. The structure was reported previously by Tosik, Bukowska-Strzyzewska & Mrozinski [J. Coord. Chem. (1991), 24, 113-120], but only 0.68 ethanol molecules were found in the asymmetric unit. The present redetermination indicates that two ethanol molecules occur in the asymmetric unit. One ethanol molecule is ordered while the other one is disordered, with the hydroxyl group in two alternative sites. Both disordered hydroxyl groups hydrogen bond to the ordered ethanol molecule with OO separations of 2.845  (16) and 2.67  (2)  Å, and O-HO angles of 156 and 147°, respectively.

Online 18 September 2003

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