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
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
复制标题
DOI：
10.1021/ja200901n
复制
发表时间：
2011-04-13
影响因子：
15
通讯作者：
Fukuzumi, Shunichi
中科院分区：
文献类型：
--
作者：
Park, Jiyun;Morimoto, Yuma;Fukuzumi, Shunichi
在Sc~(3+)的存在下，非血红素铁(IV)-氧络合物的亚磺化氧化反应机理由直接氧转移转变为金属离子耦合电子转移。硫代苯甲醚的单电子氧化电势决定了亚磺化反应机理的转变。SC3+的加入使亚磺化反应速度加快了10(2)倍。
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 Sc3+. 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 Sc3+.