A novel MCM-41-supported manganese(III) complex with nitrogen donor ligand for cyclohexene oxidation

被引：48

作者：

Lau, SH

Caps, V

Yeung, KW

Wong, KY

Tsang, SC ^{[1
]}

机构：

[1] Univ Reading, Dept Chem, Catalysis Res Grp, Reading RG6 6AD, Berks, England

[2] Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Hong Kong, Peoples R China

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 1999年 / 32卷 / 03期

关键词：

catalyst; EXAFS; immobilization; MCM-41; Mn complex;

D O I：

10.1016/S1387-1811(99)00116-X

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A novel MCM-41-supported Mn(III) complex with the nitrogen donor ligand I,11-bis(a-pyridyl)-2,6,10-triazaundec-1,10-diene [MCM-41-Mn(NNNN)] shows significantly higher catalytic activity in the oxidation of cyclohexene than its Schiff base analogue [MCM-41-Mn(NNOO)] at the same surface coverage. Extended X-ray adsorption fine structure analysis indicated that at high surface coverage isolated anchored Mn complexes are maintained in the former case whereas the latter gives phenoxy-bridged oligomers on the surface of the mesoporous silica support. (C) 1999 Elsevier Science B.V. All rights reserved.

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收藏

页码：279 / 285

页数：7

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