%0 Journal Article %J Chemical Communications %D 2016 %T Electrocatalytic water oxidation by a molecular cobalt complex through a high valent cobalt oxo intermediate %A Das, Debasree %A Pattanayak, Santanu %A Singh, Kundan K. %A Garai, Bikash %A Sen Gupta, Sayam %X 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. %B Chemical Communications %V 52 %P 11787-11790 %8 AUG %G eng %N 79 %3 Foreign %4 6.567 %R 10.1039/c6cc05773j