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Issue 79, 2016
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Electrocatalytic water oxidation by a molecular cobalt complex through a high valent cobalt oxo intermediate

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Abstract

Biuret-modified tetraamidomacrocyclic cobalt complex [CoIII-bTAML] is shown to catalyze electrochemical water oxidation at basic pH leading to the formation of O2. Electrochemical and spectroscopic studies indicate a high valent cobalt oxo intermediate isoelectronic to CoV(O) as the active oxidant. The kinetic isotope effect of 8.63 indicates an atom proton transfer mechanism.

Graphical abstract: Electrocatalytic water oxidation by a molecular cobalt complex through a high valent cobalt oxo intermediate

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Publication details

The article was received on 16 Jul 2016, accepted on 22 Aug 2016 and first published on 22 Aug 2016


Article type: Communication
DOI: 10.1039/C6CC05773J
Chem. Commun., 2016,52, 11787-11790

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    Electrocatalytic water oxidation by a molecular cobalt complex through a high valent cobalt oxo intermediate

    D. Das, S. Pattanayak, K. K. Singh, B. Garai and S. Sen Gupta, Chem. Commun., 2016, 52, 11787
    DOI: 10.1039/C6CC05773J

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