Acta Cryst. (2004). E60, m1025-m1027  [ doi:10.1107/S1600536804015338 ]

Diaquabis(N,N-dimethylethylenediamine-²N,N')copper(II) squarate

I. Uçar, O. Z. Yesilel, A. Bulut, H. Ölmez and O. Büyükgüngör

Abstract: The crystal structure determination of the title compound, [Cu(C₄H₁₂N₂)₂(H₂O)₂](C₄O₄), is reported. It adopts an elongated octahedral trans-[CuN₄O₂] coordination geometry with the Cu^II atom located at a centre of symmetry. The axial Cu-O bond length is 2.6066 (17) Å, while the equatorial Cu-N bond lengths are 1.9849 (16) and 2.1102 (16) Å. Intermolecular O-HO and N-HO hydrogen bonds are responsible for linking the complex cation to the squarate dianion, forming layers. The anion is also centrosymmetric.

Online 30 June 2004

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