L. P. Battaglia, A. Corradi, S. Ianelli
May 1, 1993
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Journal
Journal of Crystallographic and Spectroscopic Research
Abstract
The crystal and molecular structure of the [N(2-ammoniumethyl)piperazinium]tetra-chloromonobromocuprate(II) monohydrate is reported. The crystals are monoclinic, space groupP21/c,Z=4, witha=9.560(2),b=9.240(3),c=18.270(7)Å,β=99.20(2)°. The structure consists of discrete N(2-ammoniumethyl)piperazinium cations, uncoordinated water molecules and [CuCl4Br]3− anions, in which four coplanar chlorine atoms occupy the square-basal plane and one bromine atom the axial position, giving the copper(II) ion a moderately elongated square-pyramidal geometry. The structure was refined to a finalR index of 0.0765.