Acta Cryst. (2007). E63, m2087-m2088  [ doi:10.1107/S1600536807032552 ]

{-6,6'-Diethoxy-2,2'-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolato}trinitratoneodymium(III)copper(II)

Y. Sui, X.-N. Fang, X.-C. Zhou, Q.-Y. Luo and Y.-P. Xu

Abstract: In the title heteronuclear Cu^II-Nd^III complex (systematic name: {6,6'-diethoxy-2,2'-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolato-1⁴O¹,O^1',O⁶,O^6':2⁴O¹,N,N',O^1'}trinitrato-1⁶O,O'-neodymium(III)copper(II)), [CuNd(C₂₀H₂₂N₂O₄)(NO₃)₃], with the hexadentate Schiff base compartmental ligand N,N'-bis(3-ethoxysalicylidene)ethylenediamine, the Cu and Nd atoms are doubly bridged by two phenolate O atoms provided by the Schiff base ligand. The coordination of the Cu atom is square planar with the donor centers of two imine N atoms and two phenolate O atoms. The neodymium(III) center has a decacoordination environment of O atoms, involving the phenolate O atoms, two ethoxy O atoms and two O atoms each from the three nitrate ligands. Some weak C-HO and OCu [OCu = 3.169 (3) Å] interactions generate a two-dimensional zigzag sheet.

Online 11 July 2007

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