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

页码：3109 / 3112

页数：4

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