Acta Cryst. (2009). E65, m1352  [ doi:10.1107/S1600536809040872 ]

Hexaaquamagnesium(II) bis{[N-(4-methoxy-2-oxidobenzylidene)glycylglycinato(3-)]cuprate(II)} hexahydrate

J. Jiang, Y. Lu, L. Yuan and W. Liu

Abstract: In the title complex, [Mg(H₂O)₆][Cu(C₁₂H₁₁N₂O₅)]₂·6H₂O, the Cu^II atoms lie at the center of the square plane of triple negatively charged O,N,N',O'-tetradentate Schiff base ligands, which are coordinated by one phenolate O atom, one imine N atom, one deprotonated amide N atom and one carboxylate O atom. The Mg^II center, which sits on an inversion center, is coordinated by six aqua ligands and exhibits a slightly distorted octahedral conformation. The asymmetric unit consists of an [N-(4-methoxy-2-oxidobenzylidene)glycylglycinato]cuprate(II) anion, one half of an [Mg(H₂O)₆]²⁺ cation and three free water molecules. The cations and anions form columns by O-HO hydrogen bonds.

Online 13 October 2009

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