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

Biuret-modified tetraamidomacrocyclic cobalt complex [Co III -bTAML] − is shown to catalyze electrochemical water oxidation at basic pH leading to the formation of O 2 . Electrochemical and spectroscopic studies indicate a high valent cobalt oxo intermediate isoelectronic to Co V (O) as the active o...

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Veröffentlicht in:	Chemical communications (Cambridge, England) England), 2016-01, Vol.52 (79), p.11787-1179
Hauptverfasser:	Das, Debasree, Pattanayak, Santanu, Singh, Kundan K, Garai, Bikash, Sen Gupta, Sayam
Format:	Artikel
Sprache:	eng
Schlagworte:	Cobalt Formations Isotope effect Oxidants Oxidation Oxidizing agents Reaction kinetics
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creator	Das, Debasree Pattanayak, Santanu Singh, Kundan K Garai, Bikash Sen Gupta, Sayam
description	Biuret-modified tetraamidomacrocyclic cobalt complex [Co III -bTAML] − is shown to catalyze electrochemical water oxidation at basic pH leading to the formation of O 2 . Electrochemical and spectroscopic studies indicate a high valent cobalt oxo intermediate isoelectronic to Co V (O) as the active oxidant. The kinetic isotope effect of 8.63 indicates an atom proton transfer mechanism. Biuret-modified tetraamidomacrocyclic cobalt complex [Co III -bTAML] − is shown to catalyze electrochemical water oxidation at basic pH leading to the formation of O 2 .
doi_str_mv	10.1039/c6cc05773j
format	Article
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subjects	Cobalt Formations Isotope effect Oxidants Oxidation Oxidizing agents Reaction kinetics
title	Electrocatalytic water oxidation by a molecular cobalt complex through a high valent cobalt oxo intermediate
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