Studies on the nature of active species in W(CO)6/CCl4/hv system as applied to metathesis polymerisation reactions

被引：12

作者：

Bhukta, G ^{[1
]}

Manivannan, R ^{[1
]}

Sundararajan, G ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem, Madras 600036, Tamil Nadu, India

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2000年 / 601卷 / 01期

关键词：

metathesis polymerisation; photolysis; W(CO)(6); CCL4; phenylacetylene; norbornene;

D O I：

10.1016/S0022-328X(00)00015-2

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Irradiation of W(CO)(6) in CCl4 generates an 'active species' which has the ability to polymerise alkynes and strained cyclic olefins via a metathesis pathway. The precipitate formed after 2 h of irradiation is active for polymerisation. The involvement of metal carbene in the polymerisation of norbornene was proved by in situ H-1-NMR study and by the end-capping reaction. IR studies showed the presence of carbonyl and chlorine ligands around the tungsten centre. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：16 / 21

页数：6

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