Tetramethylcyclopentadienyl vs Cyclopentadienyl Substituents. Synthesis and Structural Characterization of Organolanthanide Compounds Derived from the Versatile Ligand Me2Si(C5Me4H)(C2B10H11)
Tetramethylcyclopentadienyl vs Cyclopentadienyl Substituents. Synthesis and Structural Characterization of Organolanthanide Compounds Derived from the Versatile Ligand Me2Si(C5Me4H)(C2B10H11)
复制标题
DOI：
10.1021/om010031i
复制
发表时间：
2001-05
期刊：
影响因子：
2.8
通讯作者：
Guofu Zi;Qingchuan Yang;A. Mak;Zuowei Xie
中科院分区：
文献类型：
--
作者：
Guofu Zi;Qingchuan Yang;A. Mak;Zuowei Xie
Me_2Si(C_5Me_4H)Cl与1当量Li_2C_2B_(10)H_(10)在甲苯/乙醇中反应得到单阴离子盐[Me_2Si(C_5Me_4)(C_2B_(10)H_(11))]Li(OEt_2).5(1)，用1当量n-BuLi可方便地转化为双阴离子盐[{[(μ-η5)：σ-Me2Si(C5Me4)(C2B10H10)]Li(THF)}2Li][Li(THF)4]·THF(2)。1与1当量的LnCl3在四氢呋喃中反应得到[η5-Me2Si(C5Me4)(C2B10H11)]LnCl3Li(四氢呋喃)3(Ln=Nd3，Sm(4))。3可以与1的1当量进一步反应生成[η5-Me2Si(C5Me4)(C2B10H11)]2Nd(μ-Cl)2Li(OEt2)(THF)(6)，NdCl3与1的2当量反应也可以得到[{[η5-Me2Si(C5Me4)(C2B10H11)]Sm}2(μ2-Cl)3(μ3-Cl)4Li(OEt2)2Li(THF)2Sm(μ4-O)]2(6)。4的部分水解得到了新的簇合物NdCl3(5)。1与4当量的NaNH_2在四氢呋喃中反应，再与1当量的YbCl3反应，得到(η_5-C_5Me_4H)_2Yb(μ-Cl)_2Li(THF)_2(7)。2与NdCl3等摩尔反应生成阴离子化合物[{η5：σ-Me2Si(C5Me4)(C2B10H10)}2][Li(Dme)3](11)。相互作用……
Reaction of Me2Si(C5Me4H)Cl with 1 equiv of Li2C2B10H10 in toluene/Et2O gave the monoanionic salt [Me2Si(C5Me4)(C2B10H11)]Li(OEt2)0.5 (1), which could be conveniently converted into the dianionic salt [{[(μ-η5):σ-Me2Si(C5Me4)(C2B10H10)]Li(THF)}2Li][Li(THF)4]·THF (2) by treatment with 1 equiv of n-BuLi. 1 reacted with 1 equiv of LnCl3 in THF to give [η5-Me2Si(C5Me4)(C2B10H11)]LnCl3Li(THF)3 (Ln = Nd (3), Sm (4)). 3 could further react with 1 equiv of 1 to afford [η5-Me2Si(C5Me4)(C2B10H11)]2Nd(μ-Cl)2Li(OEt2)(THF) (6), which could also be prepared from the reaction of NdCl3 with 2 equiv of 1. Partial hydrolysis of 4 resulted in the isolation of the novel cluster [{[η5-Me2Si(C5Me4)(C2B10H11)]Sm}2(μ2-Cl)3(μ3-Cl)4Li(OEt2)2Li(THF)2Sm(μ4-O)]2 (5). Treatment of 1 with 4 equiv of NaNH2 in THF, followed by reaction with 1 equiv of YbCl3, produced (η5-C5Me4H)2Yb(μ-Cl)2Li(THF)2 (7). An equimolar reaction between 2 and NdCl3 yielded the anionic compound [{η5: σ-Me2Si(C5Me4)(C2B10H10)}2Nd][Li(DME)3] (11). Interaction of ...