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Issue 48, 2015
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Molecular oxygen reduction catalyzed by a highly oxidative resistant complex of cobalt–hydrazone at the liquid/liquid interface

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Abstract

A new complex of Co(III) using an oxidative stable hydrazone ligand, CoL, was synthesized and characterized by elemental analysis, spectroscopic methods and single crystal X-ray analysis where HL is bis-[(E)-N′-(phenyl(pyridin-2-yl)methylene)]carbohydrazide. X-ray analysis revealed that the complex is mononuclear and the coordination environment around the Co(III) core is trans-[CoN4Cl2]. The catalytic activity of the complex in the oxygen reduction reaction was investigated. The complex is a highly oxidative resistant cobalt-hydrazone which can efficiently catalyze the reduction of oxygen (O2) by a weak electron donor ferrocene, (Fc), at the polarized water/1,2-dichloroethane (DCE) interface. Oxygen reduction is coupled with proton transfer from water to the organic phase to form hydrogen peroxide, which is extracted into the aqueous phase.

Graphical abstract: Molecular oxygen reduction catalyzed by a highly oxidative resistant complex of cobalt–hydrazone at the liquid/liquid interface

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The article was received on 07 Aug 2015, accepted on 04 Sep 2015 and first published on 07 Sep 2015


Article type: Paper
DOI: 10.1039/C5CP04695E
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Citation: Phys. Chem. Chem. Phys., 2015,17, 32161-32172

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    Molecular oxygen reduction catalyzed by a highly oxidative resistant complex of cobalt–hydrazone at the liquid/liquid interface

    M. A. Kamyabi, F. Soleymani-Bonoti, R. Bikas, H. Hosseini-Monfared, N. Arshadi, M. Siczek and T. Lis, Phys. Chem. Chem. Phys., 2015, 17, 32161
    DOI: 10.1039/C5CP04695E

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