Polymeric membranes:: the role this support plays in the reactivity of the different generations of metalloporphyrins

被引：22
作者：
Gotardoa, MCAF
Guedes, AA
Schiavon, MA
José, NA
Valéria, I
Yoshida, P
Assis, MD
机构：
[1] Univ Sao Paulo, FFCLRP, Dept Quim, Lab Bioinorgan, BR-14040901 Ribeirao Preto, SP, Brazil
[2] Univ Estadual Campinas, Inst Quim, BR-13083970 Campinas, SP, Brazil
来源：
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2005年 / 229卷 / 1-2期
基金：
巴西圣保罗研究基金会;
关键词：
metalloporphyrins; poly(dimethylsiloxane); membrane; catalysis; oxidation;
D O I：
10.1016/j.molcata.2004.11.014
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this work, we investigated the catalytic activity of representatives of the three generations of ironporphyrins, namely [5,10,15,20-tetraphenylporphyrin]iron(III) chloride (Fe(TPP)Cl), [5,10,15,20-tetrakis(2,6-dichlorophenyl)porphyrin]iron(III) chloride (Fe(TDCPP)Cl), and [5-mono(pentafluorophenyl) 10, 15,20-tris(2,6-dichlorophenyl)2,3,7,8,12,13,17,18-octachloroporphyrin] iron(Ill) (Fe(PCl8)Cl), occluded in a polymeric film based on poly(dimethylsiloxane) (PDMS), in the oxidation of cyclohexane by iodosylbenzene. The catalytic results show the influence of the polymeric support on the reactivity of the three generations of metalloporphyrins, its importance in concentrating the substrate close to the catalytic site, and the protection it renders the catalyst against auto-oxidative destruction. (C) 2004 Elsevier B.V. All rights reserved.
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页码：137 / 143
页数：7
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