Metal ion effect on the switch of mechanism from direct oxygen transfer to metal ion-coupled electron transfer in the sulfoxidation of thioanisoles by a non-heme iron(IV)-oxo complex |
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Authors: | Park Jiyun Morimoto Yuma Lee Yong-Min Nam Wonwoo Fukuzumi Shunichi |
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Institution: | Department of Bioinspired Science, Ewha Womans University, Seoul 120-750, Korea. |
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Abstract: | The mechanism of sulfoxidation of thioaniosoles by a non-heme iron(IV)-oxo complex is switched from direct oxygen transfer to metal ion-coupled electron transfer by the presence of Sc(3+). The switch in the sulfoxidation mechanism is dependent on the one-electron oxidation potentials of thioanisoles. The rate of sulfoxidation is accelerated as much as 10(2)-fold by the addition of Sc(3+). |
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