Characterization of a Dinuclear Copper(II) Complex and Its Fleeting Mixed-Valent Copper(II)/Copper(III) Counterpart - Aix-Marseille Université Accéder directement au contenu
Article Dans Une Revue ChemPlusChem Année : 2017

Characterization of a Dinuclear Copper(II) Complex and Its Fleeting Mixed-Valent Copper(II)/Copper(III) Counterpart

Résumé

The synthesis of a dinuclear copper(II) complex, supported by a 1,3‐diamino‐2‐propanol‐based tetraamide ligand, is reported. Structural properties in the solid state and in solution, by means of XRD analysis and NMR spectroscopy, respectively, provide evidence of a highly flexible complex that can display several conformations, leading to the image of the wings of a butterfly. The complex was fully characterized and the redox properties were investigated. Room‐temperature spectro‐electrochemistry was used to monitor the formation of a metastable mono‐oxidized product that displayed an absorption band centered at λ=463 nm. EPR investigation of the low‐temperature, chemically generated, mono‐oxidized product reveals the presence of an intermediate described as a mixed‐valent CuIICuIII species, which is a model of the possible highly oxidizing intermediate in particulate methane monooxygenase.
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hal-01793247 , version 1 (30-11-2022)

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Amélie Kochem, Federica Gennarini, Mehdi Yemloul, Maylis Orio, Nicolas Le Poul, et al.. Characterization of a Dinuclear Copper(II) Complex and Its Fleeting Mixed-Valent Copper(II)/Copper(III) Counterpart. ChemPlusChem, 2017, Biofest, 82 (4), pp.615-624. ⟨10.1002/cplu.201600636⟩. ⟨hal-01793247⟩
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