Synthesis, Structures, and Polymerization Catalytic Properties of Doubly Bridged Bis(cyclopentadienyl) Dinuclear (μ-Oxo)titanium Complexes

被引：8
|
作者：
Luo, Shuang [1 ]
Shen, Bo [1 ]
Li, Bin [1 ]
Song, Haibin [1 ]
Xu, Shansheng [1 ]
Wang, Baiquan [1 ,2 ]
机构：
[1] Nankai Univ, Coll Chem, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R China
[2] Chinese Acad Sci, State Key Lab Organometall Chem, Shanghai 200032, Peoples R China
来源：
ORGANOMETALLICS | 2009年 / 28卷 / 10期
基金：
中国国家自然科学基金; 高等学校博士学科点专项科研基金;
关键词：
OLEFIN POLYMERIZATION; ZIRCONIUM COMPLEXES; MOLECULAR-STRUCTURE; TITANIUM COMPLEXES; CYCLOPENTADIENYL LIGAND; ZIRCONOCENE CATALYSTS; BIMETALLIC COMPLEXES; CRYSTAL-STRUCTURE; METAL-COMPLEXES; PERFORMANCE;
D O I：
10.1021/om900089w
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The doubly bridged dinuclear (mu-oxo)titanium complex (Me2C)(Me2Si)(C5H3)(2)(mu-O)(CpTiCl)(2) (1) was synthesized by the reaction of the lithium compound of the doubly bridged bis(cyclopentadienyl) ligand with (CpTiCl2)(2)O. Treatment of 1 with concentrated HCl or HBr gave the corresponding Cp-decoordinated products (Me2C)(Me2Si)(C5H3)(2)[CPTiX(mu-O)TiX2] (X = Cl (2), Br (3)). All these titanium complexes were characterized by H-1 NMR, C-13 NMR, MS spectra, and elemental analysis. The crystal structures of (CPTiCl2)(2)O, 1, and 3 were determined by X-ray diffraction. Their catalytic properties for ethylene polymerization were also studied in the presence of MAO.
引用
收藏
页码：3109 / 3112
页数：4
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