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1968年M.Tsutsui等首次报道了稀土茚基配合物的合成.他们是通过无水稀土三氯化物与茚基钠在四氢呋喃中反应而制得的,产物为四氢呋喃的加合物Ln(C_(?)H_7)_(?)·THF(Ln=La,Sm,Gd,Tb,Dy和Yb)这些配合物的磁矩与相应的稀土茂基配合物相近;三茚基镧的~1H-NMR谱则与离子型的茚基钠相近,但发现钐配合物具有一定的共价性.稍后,有人制得了Sm(C_(?)H_7)_(?)的单晶,其x-结构分析未能证实这一点.近年来,又相继合成了稀土四氢茚基配合物、稀土七甲茚基配合物.过渡金属的π-茚基配合物在烯烃聚合中的应用,在专利文献中尚较
The synthesis of rare earth indenyl complexes was first reported by M. Tsutsui et al in 1968. They were prepared by the reaction of anhydrous rare earth trichloride with indenyl sodium in tetrahydrofuran as the adduct of tetrahydrofuran Ln (C_ ( ?) H_7) _ (?) · THF (Ln = La, Sm, Gd, Tb, Dy and Yb) These complexes have similar magnetic moments to the corresponding rare earth- It is similar to the ionic indenyl sodium, but it has been found that the samarium complex has a certain degree of covalence.Single crystals of Sm (C_ (?) H_7) _ (?) Have been prepared and their x- Can confirm this.In recent years, have synthesized a rare earth tetrahydroindenyl complexes, rare earth heptamethyladenyl complexes.π-indenyl complexes of transition metals in the polymerization of olefins, in the patent literature is still more