Cobalt(II) complexes bearing 2-imino-1,10-phenanthroline ligands: synthesis, characterization and ethylene oligomerization

被引:69
|
作者
Jie, Suyun
Zhang, Shu
Wedeking, Katrin
Zhang, Wen
Ma, Hongwei
Lu, Xiaoming
Deng, Yuan
Sun, Wen-Hua [1 ]
机构
[1] Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing 100080, Peoples R China
[2] Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China
[3] Capital Normal Univ, Dept Chem, Beijing 100037, Peoples R China
基金
中国国家自然科学基金;
关键词
2-imino-1,10-phenanthrolines; cobalt complexes; ethylene oligomerization;
D O I
10.1016/j.crci.2006.09.007
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A series of cobalt(II) complexes containing 2-imino-1,10-phenanthrolines have been synthesized and characterized by elemental and spectroscopic analysis. The molecular structures of complexes 2, 3, 8 and 14 were confirmed by X-ray diffraction analysis. On treatment with methylaluminoxane (MAO) or modified methylaluminoxane (MMAO), these cobalt(II) complexes show moderate to high catalytic activities for ethylene oligomerization and butene predominates among the oligomers produced. The parameters of the reaction conditions and the effects of the ligands environment were investigated.
引用
收藏
页码:1500 / 1509
页数:10
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