硅桥连双（三甲硅基环戊二烯基）双锂盐与ＴｉＣｌ４·２ＴＨＦ反应，生成相应的钛化合物［Ｅ（Ｃ５Ｈ３ＳｉＭｅ３）２］ＴｉＣｌ２［Ｅ＝Ｍｅ２ＳｉＳｉＭｅ２（３），Ｍｅ２ＳｉＯＳｉＭｅ２（５）］，同时还分离到了脱一个三甲硅基的产物［Ｅ（Ｃ５Ｈ４）（Ｃ５Ｈ３ＳｉＭｅ３）］ＴｉＣｌ２［Ｅ＝Ｍｅ２ＳｉＳｉＭｅ２（４），Ｍｅ２ＳｉＯＳｉＭｅ２（６）］．其中四甲基二硅氧桥连配体更容易发生这种脱硅基反应．通过元素分析、ＭＳ和１ＨＮＭＲ谱表征了化合物３—６的分子结构 The silicon bridged bis (trimethylsilylcyclopentadienyl) bisithium salt reacts with TiCl 4 · 2THF to form the corresponding titanium compound [E (C5H3SiMe3) 2] TiCl2 [E = Me2SiSiMe2 (3), Me2SiOSiMe2 At the same time, a trimethylsilyl product [E (C5H4) (C5H3SiMe3)] TiCl2 [E = Me2SiSiMe2 (4), Me2SiOSiMe2 (6)] was isolated. The tetramethyldisiloxane bridged ligand is more likely to occur in this desilication reaction. The molecular structure of compound 3-6 was characterized by elemental analysis, MS and 1H NMR spectra