Synthesis, characterization and ethylene polymerization behavior of nickel dihalide complexes bearing bulky unsymmetrical α-diimine ligands

被引:100
|
作者
Liu, Hao [1 ,2 ,4 ]
Zhao, Weizhen [1 ,2 ]
Yu, Jiangang [1 ,2 ]
Yang, Wenhong [1 ,2 ]
Hao, Xiang [1 ,2 ]
Redshaw, Carl [3 ]
Chen, Langqiu [4 ]
Sun, Wen-Hua [1 ,2 ]
机构
[1] Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing 100190, Peoples R China
[2] Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
[3] Univ E Anglia, Sch Chem, Norwich NR4 7TJ, Norfolk, England
[4] Xiangtan Univ, Coll Chem, Key Lab Environm Friendly Chem & Applicat, Minist Educ, Xiangtan 411105, Peoples R China
基金
英国工程与自然科学研究理事会;
关键词
DIPHENYLPHOSPHINOENOLATE PHENYL COMPLEXES; CATALYTIC OLIGOMERIZATION; PALLADIUM(II) COMPLEXES; EFFICIENT DIMERIZATION; CRYSTAL-STRUCTURE; METAL-COMPLEXES; H...O-NI; OLEFINS; PROPYLENE; COBALT;
D O I
10.1039/c1cy00319d
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A series of nickel(II) dihalide complexes (C1-C10) bearing unsymmetrical alpha-diimine ligands of the type 2,4-dibenzhydryl-N-(2-phenyliminoacenaphthylenylidene)-6-methylbenzenamine (L1-L5) were synthesized and fully characterized. Single-crystal X-ray diffraction revealed a distorted tetrahedral geometry around the nickel center in the complexes C3, C5 and C9. Upon activation with modified methylaluminoxane (MMAO), all nickel pro-catalysts performed with high activities in ethylene polymerization, producing highly branched polyethylene products.
引用
收藏
页码:415 / 422
页数:8
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