Binuclear neutral nickel complexes bearing bis(bidentate) salicylaldiminato ligands: Synthesis, structure and ethylene polymerization behavior

被引:32
作者
Wang, Wei-Hua [1 ]
Jin, Guo-Xin [1 ]
机构
[1] Fudan Univ, Dept Chem, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China
关键词
nickel; catalyst; binuclear; molecular structure; polymerization of ethylene;
D O I
10.1016/j.inoche.2006.02.015
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Reaction of sodium salts of the bridging [O,N,N,O]-type bisalylaldimine ligands [O,N,N,O = [3-phenyl-2-OH-(CH=N)](2)-L (L = CH2CH2CH2 3a, 1,4-C6H4 3b)] with trans-bis(triphenylphosphane)phenylnickel (II) chloride result in neutral bis(bidentate) binuclear nickel (II) complexes 4a and 4b. The structure of 4b has been confirmed by X-ray crystallography. 4a shows moderate activity for polymerization of ethylene in the presence of methylaluminoxane (MAO). Catalytic activities, molecular weights and molecular weight distribution of polyethylene have been investigated under the various reaction conditions. (C) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:548 / 550
页数:3
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