Bis(imino) pyridine cobalt alkyl complexes and their reactivity towards ethylene:: a model system for β-hydrogen chain transfer

被引：41

作者：

Gibson, VC ^{[1
]}

Tellmann, KP ^{[1
]}

Humphries, MJ ^{[1
]}

Wass, DF ^{[1
]}

机构：

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

来源：

CHEMICAL COMMUNICATIONS | 2002年 / 20期

关键词：

D O I：

10.1039/b207794a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Bis(imino)pyridine cobalt(I) n-alkyl complexes react with ethylene by beta-hydrogen transfer, allowing direct study of a termination step commonly encountered in polymerisation and oligomerisation catalysis.

引用

页码：2316 / 2317

页数：2

共 14 条

[1] Novel olefin polymerization catalysts based on iron and cobalt [J].

Britovsek, GJP ;

Gibson, VC ;

Kimberley, BS ;

Maddox, PJ ;

McTavish, SJ ;

Solan, GA ;

White, AJP ;

Williams, DJ .

CHEMICAL COMMUNICATIONS, 1998, (07) :849-850

[2] Iron and cobalt ethylene polymerization catalysts bearing 2,6-bis(imino)pyridyl ligands:: Synthesis, structures, and polymerization studies [J].

Britovsek, GJP ;

Bruce, M ;

Gibson, VC ;

Kimberley, BS ;

Maddox, PJ ;

Mastroianni, S ;

McTavish, SJ ;

Redshaw, C ;

Solan, GA ;

Strömberg, S ;

White, AJP ;

Williams, DJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (38) :8728-8740

[3] DYNAMICS OF AGOSTIC COMPLEXES OF THE TYPE C5R5(C2H4)M(CH2CH2-MU-H)+ - ENERGY DIFFERENCES BETWEEN AND ANCILLARY LIGAND CONTROL OF AGOSTIC AND TERMINAL HYDRIDE STRUCTURES [J].

BROOKHART, M ;

LINCOLN, DM ;

BENNETT, MA ;

PELLING, S .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1990, 112 (07) :2691-2694

[4] A density functional study of Nickel(II) diimide catalyzed polymerization of ethylene [J].

Deng, LQ ;

Margl, P ;

Ziegler, T .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (05) :1094-1100

[5] Stable, cationic alkyl-olefin complexes of ruthenium(II) and rhodium(III): Effects of ligand geometry upon olefin insertion/alkyl migration [J].

Dias, EL ;

Brookhart, M ;

White, PS .

ORGANOMETALLICS, 2000, 19 (24) :4995-5004

[6]

DIECK HT, 1981, Z NATURFORSCH B, V36, P823

[7] Reaction of [P2N2]Ta=CH2(Me) with ethylene:: Synthesis of [P2N2]Ta(C2H4)Et, a neutral species with a β-agostic ethyl group in equilibrium with an α-agostic ethyl group ([P2N2] = PhP(CH2SiMe2NSiMe2CH2)2PPh) [J].

Fryzuk, MD ;

Johnson, SA ;

Rettig, SJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (08) :1602-1612

[8] The nature of the active species in bis(imino) pyridyl cobalt ethylene polymerisation catalysts [J].

Gibson, VC ;

Humphries, MJ ;

Tellmann, KP ;

Wass, DF ;

White, AJP ;

Williams, DJ .

CHEMICAL COMMUNICATIONS, 2001, (21) :2252-2253

[9]

HUMPHRIES MJ, 2001, 222 ACS NAT M CHIC I

[10]

Kooistra TM, 2001, ANGEW CHEM INT EDIT, V40, P4719, DOI 10.1002/1521-3773(20011217)40:24<4719::AID-ANIE4719>3.0.CO

← 1 2 →