The nature of the active site in bis(imino)pyridine iron ethylene polymerisation catalysts

被引：103

作者：

Britovsek, GJP

Clentsmith, GKB

Gibson, VC

Goodgame, DML

McTavish, SJ

Pankhurst, QA

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AY, England

[2] UCL, Dept Phys & Astron, London WC1E 6BT, England

来源：

CATALYSIS COMMUNICATIONS | 2002年 / 3卷 / 05期

关键词：

ethylene; iron; mechanism; polymerisation;

D O I：

10.1016/S1566-7367(02)00092-4

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：

Mossbauer and electron paramagnetic resonance (EPR) spectroscopic studies reveal that the iron centres in bis(imino)pyridine iron(II) olefin polymerisation pre-catalysts of the type LFeCl(2) are oxidised upon treatment with methylaluminoxane (MAO) to give an active species that contains iron solely in the +3 oxidation state. (C) 2002 Published by Elsevier Science B.V.

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页码：207 / 211

页数：5

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