四甲基二硅氧基桥联双环戊二烯基稀土金属配合物的合成及结构研究

Synthesis and Structural Studies of Tetramethyldisiloxanyl Dicyclopentadienyl Lanthanide Chlorides

在严格的无水无氧条件下无水ＮｄＣｌ３和ＳｍＣｌ３与Ｎａ２（Ｃ５Ｈ４ＳｉＭｅ２）２Ｏ以１∶１摩尔比在四氢呋喃溶液中反应，得标题配合物［Ｏ（Ｍｅ２ＳｉＣ５Ｈ４）２Ｌｎ（μ－Ｃｌ）（ＴＨＦ）］２［Ｌｎ＝Ｎｄ（１），Ｓｍ（２）］．元素分析证明配合物１和２的组成．Ｘ射线衍射分析证明１和２是通过氯原子桥联的二聚体结构．

There reactions of anhydrous NdCl 3 and/or SmCl 3 with Na 2(C 5H 4SiMe 2) 2O in 1∶1 molar ratio in THF afforded the title compounds O(Me 2SiC 5H 4) 2Ln( μ Cl)(THF) 2 Ln=Nd(1), Sm(2) . Compounds 1 and 2 were characterized by elemental analysis. X ray structural analysis revealed that 1 and 2 are dimeric compounds bridged by two chloro atoms.