(IUCr) Crystallography Journals Online

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Acta Cryst. (2009). E65, m1455 [ doi:10.1107/S160053680904389X ]

Bis[-N'-acetyl-1-oxidonaphthalene-2-carbohydrazidato(3-)]tetrapyridinetricopper(II)

J.-P. Gao, W. Zhang, X.-F. Shi and D.-C. Li

Abstract: There are two half-molecules in the asymmetric unit of the title compound, [Cu₃(C₁₃H₉N₂O₃)₂(C₅H₅N)₄], and crystallographic inversion symmetry completes each trinuclear molecule. In both molecules, the central Cu atom (site symmetry $\\overline{1}$ ) adopts a distorted trans-CuO₂N₄ octahedral geometry, arising from its coordination by two N,O-bidentate aroylhydrazine ligands and two pyridine molecules. The peripheral Cu atoms adopt trans-CuN₂O₂ square-planar coordinations arising from an N,O,O-tridentate ligand (that also bonds to the central Cu atom) and a pyridine molecule.

Online 28 October 2009