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Acta Cryst. (2012). E68, m469-m470  [ doi:10.1107/S1600536812009919 ]


Ejaz, I. U. Khan, A. Murtaza and W. T. A. Harrison

Abstract: In the monomeric title complex, [Cu(C4H5O2)2(C8H11N)2], the CuII atom lies on a centre of inversion. Its coordination by two substituted pyridine ligands and two carboxylate anions leads to a slightly distorted trans-CuN2O2 square-planar geometry. The dihedral angle between the mean planes of the pyridine (py) ring and the carboxylate group is 74.71 (7)°. The dihedral angles between the planar CuN2O2 core and the py ring and carboxylate plane are 67.72 (5) and 89.95 (5)°, respectively. Based on the refined C=C and C-C bond lengths, the terminal =CH2 and -CH3 groups of the carboxylate anion may be disordered, but the disorder could not be resolved in the present experiment. Several intramolecular C-H...O interactions occur. In the crystal, molecules are linked by weak C-H...O hydrogen bonds, generating chains propagating in [100].

Online 24 March 2012

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