Acta Cryst. (2009). E65, m144-m145  [ doi:10.1107/S1600536808043390 ]

Di--chlorido-bis[chlorido(1,4,6-trimethyl-6-nitro-1,4-diazepine)copper(II)]

A. J. Bortoluzzi, A. Neves, R. A. Peralta, T. P. Camargo and V. C. Weiss

Abstract: The title neutral copper complex, [Cu₂Cl₄(C₈H₁₇N₃O₂)₂], shows a binuclear center with a Cu-(-Cl)₂-Cu core, in which each copper ion is coordinated by the N,N,O donor atoms of the tridentate ligand 1,4,6-trimethyl-6-nitro-1,4-diazepine (meaaz-NO₂) and three chloride exogenous ligands. Each metal ion is facially coordinated by meaaz-NO₂ through N,N,O donor atoms, whereas two bridging and one terminal chloride ions occupy the other face of the highly Jahn-Teller-distorted octahedron. Two N atoms from tertiary amine groups of the meaaz-NO₂ ligand and two exogenous Cl atoms with short Cu-N and Cu-Cl distances define the equatorial plane. The coordination around each Cu^II ion is completed by another Cl atom and an O atom from the NO₂ group, in the axial positions. The binuclear complex exhibits a centrosymmetric structure with point symmetry .

Online 8 January 2009

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