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Titanium complexes with beta-ketoiminate chelate ligands for ethylene polymerization: The significant influence of substituents on structures and catalytic activities
其他题名Titanium complexes with beta-ketoiminate chelate ligands for ethylene polymerization: The significant influence of substituents on structures and catalytic activities
Xie GY(谢光勇); Li YX(李玉学); Sun J(孙杰); Qian ZT(钱长涛)
2009
发表期刊Inorg. Chem. Commun.
ISSN1387-7003
卷号12期号:8页码:796-799
摘要Four titanium complexes having beta-ketoiminate chelate ligands with fluorine or alkyl groups [(Ar)NC(CH3)C(H)C(CH3)O](2)TiCl2 (3a: Ar=2.6-F2C6H3; 3b: Ar=C6F5: 3c: Ar=2.6-Me2C6H3; 3d: Ar = 2.6-(Pr2C6H3)-Pr-i) have been synthesized and characterized by H-1 NMR and EA. Complexes 3a, 3c and 3d were further characterized by X-ray diffraction analysis and demonstrated distorted octahedral coordination structure around the titanium center. The substituents in ligands greatly affect the coordination mode, resulting in three different isomeric structures. These complexes are active catalysts for polymerization of ethylene with MMAO as cocatalyst. The substituents in ligands have also great influences on catalytic activity. The complexes with alkyl groups have lower activity, while the complexes with fluorine atoms have middle or high catalytic activity. (C) 2009 Elsevier B.V. All rights reserved.
学科领域金属有机化学
部门归属上海有机所; 中南民族大学
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收录类别SCI
语种英语
WOS记录号WOS:000269400000026
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被引频次:22[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sioc.ac.cn/handle/331003/15303
专题金属有机化学国家重点实验室
通讯作者Qian ZT(钱长涛)
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Xie GY,Li YX,Sun J,et al. Titanium complexes with beta-ketoiminate chelate ligands for ethylene polymerization: The significant influence of substituents on structures and catalytic activities[J]. Inorg. Chem. Commun.,2009,12(8):796-799.
APA 谢光勇,李玉学,孙杰,&钱长涛.(2009).Titanium complexes with beta-ketoiminate chelate ligands for ethylene polymerization: The significant influence of substituents on structures and catalytic activities.Inorg. Chem. Commun.,12(8),796-799.
MLA 谢光勇,et al."Titanium complexes with beta-ketoiminate chelate ligands for ethylene polymerization: The significant influence of substituents on structures and catalytic activities".Inorg. Chem. Commun. 12.8(2009):796-799.
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