Synthesis, characterization and polymerization potential of ansa-metallocene dichloride complexes of titanium, zirconium and hafnium containing a Si-N-Si bridging unit

被引:21
作者
Alt, HG [1 ]
Fottinger, K [1 ]
Milius, W [1 ]
机构
[1] Univ Bayreuth, Anorgan Chem Lab, D-95440 Bayreuth, Germany
关键词
group IV metal; amino silyl cyclopentadienyl; indenyl; ansa-metallocene dichloride; ethylene polymerization;
D O I
10.1016/S0022-328X(98)00640-8
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Five new Si-N-Si bridged metallocene dichloride complexes of the type [CpSiMe2N(R)SiMe2-Cp]MCl2 (Cp = C5H4, C9H6; R = alkyl, M = Ti, Zr, Hf) were synthesized using a new type of amine elimination reaction. All complexes were characterized by H-1-, C-13-, N-15- and Si-29-NMR spectroscopy. An X-ray structure analysis was performed for complex [C5H4-SiMe2N(Bu-n)SiMe2-C5H4]HfCl2 (4) (C) 1998 Elsevier Science S.A. All rights reserved.
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页码:109 / 114
页数:6
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