<i>C</i><sub>2</sub>-Symmetric <i>ansa</i>-Lanthanidocene Complexes. Synthesis via Silylamine Elimination and β-SiH Agostic Rigidity
作者:Jörg Eppinger、Michael Spiegler、Wolfgang Hieringer、Wolfgang A. Herrmann、Reiner Anwander
DOI:10.1021/ja992786a
日期:2000.4.1
mononuclear metallocene complexes of the lanthanide elements is described. Heteroleptic lanthanidocene silylamide complexes have been obtained ate-complex-free according to silylamine elimination reactions of complexes Ln[N(SiHMe2)2]3(THF)x (x = 1, Ln = Sc; x = 2, Ln = Y, La, Nd, Lu) and linked, substituted cyclopentadiene and indene systems. The molecular structure of [Me2Si(C5Me4)2]La[N(SiHMe2)2] (95% isolated
描述了一类新的镧系元素的 C2 对称单核茂金属配合物的合成以及光谱和结构表征。根据配合物 Ln[N(SiHMe2)2]3(THF)x (x = 1, Ln = Sc; x = 2, Ln = Y, La , Nd, Lu) 和连接的、取代的环戊二烯和茚系统。[Me2Si(C5Me4)2]La[N(SiHMe2)2](95% 分离产率)的分子结构已通过 X 射线晶体学确定。已经以高达 72% 的外消旋产率分离出 Brintzinger 型茚基衍生的茂金属配合物。IR 和多核 NMR 光谱(1H、13C、29Si、