Acta Cryst. (2008). E64, m1315  [ doi:10.1107/S1600536808030080 ]

trans-Bis(perchlorato-O)tetrakis(1H-pyrazole-N²)copper(II)

F. T. Edelmann, D. E. Kaufmann, S. Blaurock, T. Wagner and V. Zapol'skii

Abstract: The title compound, [Cu(ClO₄)₂(C₃H₄N₂)₄], was obtained unexpectedly by the reaction of copper(II) perchlorate hexahydrate with equimolar amounts of 1-chloro-1-nitro-2,2,2-tripyrazolylethane in methanol solution. The crystal structure comprises octahedrally coordinated Cu²⁺ ions, located on an inversion centre, with four pyrazole ligands in the equatorial plane. The average Cu-N distance is 2.000 (1) Å. Two perchlorate ions are coordinated to copper in trans positions [Cu-O = 2.4163 (11) Å].

Online 24 September 2008

Copyright © International Union of Crystallography
IUCr Webmaster