论文部分内容阅读
近年来低价稀土金属的有机化合物的合成及反应研究引起了极大的重视。已合成了许多Yb(Ⅱ)、Sm(Ⅱ)及Eu(Ⅱ)的金属有机化合物,但其中的有机配体多为环戊二烯基及取代的环戊二烯基。Deacon等通过(C_6F_5)_2Yb与茚进行配体交换反应,合成了二价镱的二茚基四氢呋喃配合物,但(C_6F_5)_2Yb则必须由(C_6F_5)_2Hg及金属Yb反应制得。Rybakova
In recent years, cheap synthesis of rare earth metal compounds and reaction caused great attention. Many metal-organic compounds of Yb (II), Sm (II) and Eu (II) have been synthesized, but most of the organic ligands are cyclopentadienyl and substituted cyclopentadienyl. (C_6F_5) _2Yb (C_6F_5) _2Yb must be prepared by reaction of (C_6F_5) _2Hg and metal Yb. The reaction of (C_6F_5) _2Yb with indene ligands leads to the synthesis of diindenyltetrahydrofuran complexes of divalent ytterbium. Rybakova