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学科主题: 金属有机化学
题名: 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
作者: Xie GY(谢光勇) ; Li YX(李玉学) ; Sun J(孙杰) ; Qian ZT(钱长涛)
通讯作者: 钱长涛
刊名: Inorg. Chem. Commun.
发表日期: 2009
卷: 12, 期:8, 页:796-799
收录类别: SCI
部门归属: 上海有机所; 中南民族大学
英文摘要: 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.
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000269400000026
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/15303
Appears in Collections:金属有机化学国家重点实验室_期刊论文

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Recommended Citation:
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.
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