Acta Cryst. (2006). E62, m1247-m1249  [ doi:10.1107/S1600536806016333 ]

(1-Methylimidazole-N³)[tris(2-aminoethyl)amine-⁴N]copper(II) bis(perchlorate)

H.-K. Fun, S. Chantrapromma, Z.-L. Lu and X.-Y. Gong

Abstract: The title complex, [Cu(C₄H₆N₂)(C₆H₁₈N₄)](ClO₄)₂ or [Cu(Melm)(tren)](ClO₄)₂ [Melm = N-methylimidazole and tren = tris(2-aminoethyl)amine], contains two [Cu(MeIm)(tren)]²⁺ cations in the asymmetric unit with slightly different bond distances and angles. The coordination geometry of the Cu^II ion is distorted trigonal-bipyramidal, with three primary amine groups of the tren ligand forming the equatorial plane. The tertiary amine group and the 1-methylimidazole are in the axial positions. Intra- and intermolecular N-HO hydrogen bonds are observed in the crystal structure, which is stabilized by these N-HO hydrogen bonds and also weak intra- and intermolecular C-HO interactions. Crystals of the title complex are twinned.

Online 10 May 2006

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