Cofacial binuclear copper complexes of a bis(β-diketone) ligand

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The adaptation of chelating ligands to the synthesis of binuclear metal complexes has been an area of intense activity. The objectives of these experiments have included modeling active sites in metalloproteins as well as promoting and catalyzing multielectron redox reactions. Various ligands have been used in the synthesis of such complexes: “face-to-face” porphyrins,2 planar polyketones and related macrocycles,3 and cyclic polyaza compounds, both saturated4 and unsaturated.5 Exploration of the elegant chemistry of these complexes, particularly those of the diporphyrins and the saturated polyaza compounds, has often been inhibited by the complexity of the ligand syntheses. Our work has therefore concentrated on the development of binuclear complexes that are derived from simpler polydentate ligands; these complexes should still be capable of great versatility in physical and chemical properties. We now report the preparation, structural characterization, and adduct formation reactions of the first cofacial binuclear complex of a readily synthesized bis(β-diketone) ligand. © 1984, American Chemical Society. All rights reserved.

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Inorganic Chemistry

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