Synthesis and Characterization of Novel Lanthanocene Complexes with Dichalcogenolate o-Carboranyl Ligands

• 来源期刊: 中国化学(英文版)
• 年，卷（期）: 2002,（11）
• 页码范围: 1256-1262
• 页数: 7页
• 语种: 英文

摘要

Reactions of [CP2Ln(μ-Cl)]2 (Cp= η5-C5H5, Ln=Nd, Yb,Dy, Gd, Er) with an equivalent of [(THF)3LiE2C2B10H10Li@(THF)]2(E= S, Se) in THF afforded the dinuclear sandwich complexes of formula[Cp2LnE2C2B10H10]2[Li(THF)4]2 [E =S, Ln=Nd (1a), Yb (2a), Dy (3a), Gd (4a), Er (5a);E=Se, Ln= Nd (1b), Yb (2b), Dy (3b), Gd (4b), Er(5b)]. The molecular structures of complexes 1a, 2a and 2b were determined by the single crystal X-ray struture analyses.Two lanthanide atoms are connected by a pair chalcogen (η1, η2-E2C2B10H10) bridging ligands and the central Ln2E2four membered ring is not planar.