Acta Cryst. (2009). E65, m182  [ doi:10.1107/S1600536808042396 ]

Bis(4-ammonio-4-methylpentan-2-one-O)dioxalato-⁴O¹,O²-copper(II)

Z. Ji, S. Wei and W. Wu

Abstract: The title compound, [Cu(C₂O₄)₂(C₆H₁₄NO)₂], was synthesized by mixing diacetonamine hydrogen oxalate and copper sulfate in ethanol/water. The molecule is centrosymmetric, so two pairs of equivalent ligands lie trans to each other. The Cu^II center, located on a position with 2/m site symmetry, is six-coordinated by four O atoms from two oxalate ligands at short distances and the carbonyl O atoms from the 4-amino-4-methylpentan-2-one ligands at longer distances. Molecules are linked through intermolecular N-HO hydrogen bonds between the amino groups and carbonyl O atoms; no intramolecular hydrogen bonds are formed.

Online 14 January 2009

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