Acta Cryst. (2008). E64, m1432  [ doi:10.1107/S1600536808033084 ]

{5,5'-Bis(methoxycarbonylmethoxy)-2,2'-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolato}copper(II)

Z.-H. Wang, J.-F. Ma, H. Wu and H.-Y. Liu

Abstract: The title compound, [Cu(C₂₂H₂₂N₂O₈)], is a tetradentate Schiff base complex. The Cu^II ion has a nearly square-planar geometry, being coordinated by two N atoms and two O atoms. The two chemically equivalent halves of the molecule are crystallographically independent. One of the carboxylic acid methyl ester units is located in the main plane of the molecule and the other is rotated by 65.3 (5)° with respect to this unit. In the crystal structure, there are - stacking interactions between adjacent six-membered chelate rings, with centroid-to-centroid distances of 3.602 (2) Å.

Online 18 October 2008

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