meso-tetrakis(4-N-benzylpyridyl)porphyrin and its supramolecular complexes formed with anionic metal-oxo cluster:: spectroscopy and electrocatalytic reduction of dioxygen

被引：58

作者：

Liu, SQ ^{[1
]}

Xu, JQ ^{[1
]}

Sun, HR ^{[1
]}

Li, DM ^{[1
]}

机构：

[1] Jilin Univ, Dept Chem, Changchun 130023, Peoples R China

来源：

INORGANICA CHIMICA ACTA | 2000年 / 306卷 / 01期

基金：

高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

electrocatalysis; metal complexes; porphyrin complexes; oxo complexes; cluster complexes;

D O I：

10.1016/S0020-1693(00)00154-7

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The research results show that MTBPyP (meso-tetrakis(4-N-benzylpyridyl)porphyrin, M = H-2, Zn) bearing quadruply positive charges associates with an anionic metal-ore cluster (SiW12O404-) to form a supramolecular complex in aqueous solution. The spectral evolution and Job's plots reveal that the aggregates contain equal numbers of the cationic porphyrins and the anionic SiW12O404-. The association is accompanied by significant changes in the Soret band of the individual porphyrins. The 1:1 supramolecular complex [CoTBPyP][SiW12O40] may serve as an electrocatalyst for electrocatalytic reduction of O-2, and more of O-2 is reduced to H2O at potential where the SiW12O404- is in reduced state. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：87 / 93

页数：7

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