Vinyl Polymerization of Norbornene on Nickel Complexes with Bis(imino)pyridine Ligands Containing Electron-Withdrawing Groups

被引：58

作者：

Antonov, Artem A. ^{[2
]}

Semikolenova, Nina V. ^{[1
]}

Zakharov, Vladimir A. ^{[1
]}

Zhang, Wenjuan ^{[3
]}

Wang, Youhong ^{[3
]}

Sun, Wen-Hua ^{[3
]}

Talsi, Evgenii P. ^{[1
]}

Bryliakov, Konstantin P. ^{[1
]}

机构：

[1] Boreskov Inst Catalysis, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Novosibirsk 630090, Russia

[3] Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing 100080, Peoples R China

来源：

ORGANOMETALLICS | 2012年 / 31卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

SUBSTITUTED 2,6-BIS(IMINO)PYRIDYL IRON; HIGHLY-ACTIVE CATALYSTS; ETHYLENE POLYMERIZATION; OLEFIN POLYMERIZATION; ADDITION POLYMERIZATION; METAL-CATALYSTS; COBALT COMPLEXES; PALLADIUM(II) COMPLEXES; CRYSTAL-STRUCTURES; BEARING;

D O I：

10.1021/om201213v

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A series of novel bis(imino)pyridine nickel(II) dichloride complexes, with the bis(imino)pyridine ligands containing electron-withdrawing groups (F, Cl, Br, CF3), have been prepared and characterized by elemental analysis and NMR spectroscopy. All complexes exhibit paramagnetically shifted H-1 NMR spectra, indicative of the high-spin (S = 1) state of the d(8) nickel(II) central atom. These complexes have been found to be highly active catalysts of vinyl-type norbornene polymerization upon activation with MAO, displaying activities up to 1.16 X 10(7) g of PNB (mol of cat.)(-1) h(-1) (the highest ever reported for norbornene polymerizations on bis(imino)pyridine nickel complexes) and yielding high-molecular-weight polynorbornene (M-w up to 4.5 X 10(6)). X-ray structures for some of the nickel complexes are reported.

引用

页码：1143 / 1149

页数：7

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