Non-redox metal ion promoted oxygen transfer by a non-heme manganese catalyst

被引：44

作者：

Chen, Zhuqi ^{[1
]}

Yang, Ling ^{[1
]}

Choe, Cholho ^{[1
]}

Lv, Zhanao ^{[1
]}

Yin, Guochuan ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Minist Educ, Key Lab Large Format Battery Mat & Syst, Wuhan 430074, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2015年 / 51卷 / 10期

基金：

中国国家自然科学基金;

关键词：

COUPLED ELECTRON-TRANSFER; MN-III(SALEN)-CATALYZED EPOXIDATION; PHYSICOCHEMICAL PROPERTIES; CRYSTAL-STRUCTURE; COMPLEX; OXIDATION; OXO; MECHANISM; REACTIVITY; BINDING;

D O I：

10.1039/c4cc07981g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This work demonstrates that non-redox metal ions as Lewis acids can sharply improve the oxygen transfer efficiency of amanganese(II) catalyst having a non-heme ligand. In the absence of Lewis acid, oxidation of a manganese( II) complex will generate the known di-mu-oxo-bridged dinuclear Mn-2(III,IV) core which is very sluggish for olefin epoxidation. Adding non-redox metal ions causes the dissociation of the dinuclear core, leading to sharp improvement in its oxygen transfer efficiency.

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收藏

页码：1874 / 1877

页数：4

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