Acta Cryst. (2007). E63, m2932  [ doi:10.1107/S1600536807050891 ]

A tetranuclear copper(II) complex constructed from the salen ligand with alkoxo groups

M.-S. Zhang, J.-Y. Jin, X. Wu, K.-Z. Shao and Z.-M. Su

Abstract: In the title compound, tetrakis[₃-2-(5-hydroxy-2-oxidobenzylideneamino)-2-methylpropanolato]tetracopper(II) methanol tetrasolvate, [Cu₄(C₁₁H₁₃NO₃)₄]·4CH₃OH, two Cu₂ cores are linked by two ₃-bridging alkoxo O atoms to form a centrosymmetric dimer of dicopper(II) units. Two Cu atoms coordinate to the NO₂ (a phenolic O atom, an alcoholic O atom and an imine N atom) chelator unit of one ligand and an alcohol O atom of the other ligand, forming a distorted planar coordination configure. The remaining Cu atoms coordinate in a pyramidal geometry. The distorted basal plane is also formed by the N₂O unit and the alcohol O atom from the second ligand, while an alcohol O atom from a third ligand occupies the axial position.

Online 9 November 2007

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