Acta Crystallographica Section C

Crystal Structure Communications

Volume 68, Part 9 (September 2012)

metal-organic compounds

sk3443 scheme

Acta Cryst. (2012). C68, m251-m254    [ doi:10.1107/S0108270112033318 ]

The weakly coordinating perchlorate group in bis­(N,N'-dimethyl­ethylene­diamine-[kappa]2N,N')bis­(perchlorato-[kappa]O)copper(II) studied at 100, 250 and 400 K

S. Schnitzler, M.-D. Serb and U. Englert

Abstract: The crystal structure of the title compound, [Cu(ClO4)2(C4H12N2)2], (I), is reported at 100, 250 and 400 K. The CuII cation in this complex is coordinated in a distorted octa­hedral mode characteristic of Jahn-Teller systems. The coordination of the perchlorate ligands via longer, and presumably weaker, axial Cu-O distances varies significantly as a function of temperature. One of the Cu-O distances increases between 100 and 250 K, and one of the Cu-O-Cl angles expands between 250 and 400 K. At all temperatures, the complex forms a two-dimensional N-H...O hydrogen-bond net­work in the (001) plane.

Formula: [Cu(ClO4)2(C4H12N2)2]

hkldisplay filedownload file

Structure factor file (CIF format) (171.1 kbytes)
[ doi:10.1107/S0108270112033318/sk3443Iasup2.hkl ]
Contains datablock Ia

hkldisplay filedownload file

Structure factor file (CIF format) (176.9 kbytes)
[ doi:10.1107/S0108270112033318/sk3443Ibsup3.hkl ]
Contains datablock Ib

hkldisplay filedownload file

Structure factor file (CIF format) (170.6 kbytes)
[ doi:10.1107/S0108270112033318/sk3443Icsup4.hkl ]
Contains datablock Ic


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