Acta Cryst. (2005). E61, m2709-m2710  [ doi:10.1107/S160053680503833X ]

[Dimethyl 5,6,7,8,15,16-hexahydro-6,7-dioxo-5,8,14,17-tetraazadibenzo[a,g]cyclotetradeca-3,9,13,17-tetraene-13,18-dicarboxylato-⁴N,N',N''',N'''']copper(II)

J.-H. He, L. Yue, X.-Z. Li, W.-Q. Zhang and B.-L. Liu

Abstract: In the title complex, [Cu(C₂₂H₁₈N₄O₆)], the Cu^II atom is coordinated by four N atoms from a macrocyclic ligand with a square-planar geometry. Weak C-HO hydrogen bonding occurs between neighbouring Cu^II complexes in the crystal structure.

Online 26 November 2005

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