Synthesis, characterization and polymerization potential of ansa-metallocene dichloride complexes of titanium, zirconium and hafnium containing a SiNSi bridging unit
作者:Helmut G Alt、Klaus Föttinger、Wolfgang Milius
DOI:10.1016/s0022-328x(98)00640-8
日期:1998.8
Five new SiNSi bridged metallocene dichloride complexes of the type [CpSiMe2N(R)SiMe2Cp]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 1H-, 13C-, 15N- and 29Si-NMR spectroscopy. An X-ray structure analysis was performed for complex [C5H4SiMe2N(nBu)SiMe2C5H4]HfCl2 (4)
五个新SiNSi桥接金属茂二氯化类型的配合物[CpSiMe 2 N(R)森达2 Cp]的MC1 2(CP = C 5 H ^ 4,C 9 H ^ 6 ; R =烷基,M =钛,Zr,Hf)是使用新型胺消除反应合成的。所有配合物的特征在于1 H-,13 C-,15 N-和29 Si-NMR光谱。对于复杂的[C进行X射线结构分析5 ħ 4 SiMe 2 N(Ñ丁基)森达2 C 5 ħ 4 ]的HfCl2(4)