Acta Cryst. (2007). E63, m1972-m1973  [ doi:10.1107/S1600536807029819 ]

Di--chlorido-bis{aqua[5-ethyl-2-(5-isopropyl-5-methyl-4-oxo-4,5-dihydro-1H-imidazol-2-yl)nicotinato]copper(II)}

Y. Zhao, K. Qian, Y.-G. Tu, J.-K. Li and W. Liu

Abstract: In the title centrosymmetric complex, [Cu₂(C₁₅H₁₈N₃O₃)₂(H₂O)₂Cl₂], the bridging Cu₂Cl₂ ring, which is exactly planar by virtue of a crystallographic inversion center, has two different Cu-Cl distances. The dihedral angle between the pyridine and imidazole ring planes is 2.49 (4)°. In the crystal structure, intermolecular O-HO hydrogen bonds link dimer molecules into a one-dimensional chain in the c-axis direction. The atoms of the isopropyl and ethyl groups are disordered over two sites with approximate occupancies of 0.75:0.25 and 0.5:0.5, respectively.

Online 22 June 2007

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