Ansa-bridged η-cyclopentadienyl imido and amido derivatives of titanium, zirconium and molybdenum

被引:33
|
作者
Gomes, PT [1 ]
Green, MLH [1 ]
Martins, AM [1 ]
机构
[1] Univ Oxford, Inorgan Chem Lab, Oxford OX1 3QR, England
关键词
zirconium; titanium; molybdenum;
D O I
10.1016/S0022-328X(97)00516-0
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
An improved synthesis of the ligand precursor {[C5H4(SiMe3)](CH2)(3)N(SiMe3)(2)) is described. It has been used to prepare the compounds {Ti[eta:sigma-C5H4(CH2)(3)N(SiMe3)]Cl-2), {Ti[eta-C5H4(CH2)(3)(mu-N)C-l}(2), {Zr[eta:sigma-C5H4(CH2)(3)N(SiMe3)](SMe2)Cl-2}, {Zr[eta:sigma-C5H4(CH2)(3)N(SiMe3)]Cl-2} and (Mo[eta:sigma-C5H4(CH2)(3)N(SiMe3)](PMe3)Cl-2}. The zirconium compounds together with methylaluminoxane act as catalysts for ethylene and propylene polymerisation. (C) 1998 Elsevier Science S.A.
引用
收藏
页码:133 / 138
页数:6
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