A highly active anilinotropone-based neutral nickel(II) catalyst for ethylene polymerization

被引：199

作者：

Hicks, FA ^{[1
]}

Brookhart, M ^{[1
]}

机构：

[1] Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA

来源：

ORGANOMETALLICS | 2001年 / 20卷 / 15期

关键词：

D O I：

10.1021/om010211s

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis of a neutral nickel(II) complex of 2-(2,6-diisopropylanilino)tropone is described. The important attributes of this ligand include a hindered N-aryl ring, a five-membered-ring chelate, and an anionic N-donor. The complex has been characterized in the solid state by X-ray crystallography, and relevant features are discussed. The nickel complex is capable of polymerizing ethylene with a turnover frequency of up to 8.8 x 10(6) g of PE (mol of catalyst)(-1) h(-1) and of producing polyethylenes with a wide range of branching numbers by changes in pressure and temperature. The catalyst shows an excellent tolerance for polar additives in ethylene polymerization experiments and is quite insensitive to added PPh(3).(1)

引用

页码：3217 / 3219

页数：3

共 17 条

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