Organolanthanide chemistry with bis(trimethylsilyl)methyl- and tert-butyldimethylsilyl-substituted cyclopentadienyl ligands.
作者:Salih Al-Juaid、Yurii K. Gun’ko、Peter B. Hitchcock、Michael F. Lappert、Shun Tian
DOI:10.1016/s0022-328x(98)01013-4
日期:1999.6
The homoleptic tris(substituted cyclopentadienyl)lanthanide(III) complexes [LnCpR3] (Ln=La (1), Ce (2), Pr (3), Nd (4), Sm (5), Gd (6), Tb (7), Dy (8), Er (9), Tm (10) and Yb (11)], [NdCpt3] (12), [CeCptt3] (13) and [NdCptt3] (14) [CpR=η5-C5H4CH(SiMe3)2, Cpt=η5-C5H4(SiMe2But), Cptt=η5-C5H3(SiMe2But)2-1,3], have been synthesised by the reaction of the anhydrous lanthanide(III) halide with the appropriate
均一的三(取代环戊二烯基)镧系元素(III)配合物[LnCp R 3 ](Ln = La(1),Ce(2),Pr(3),Nd(4),Sm(5),Gd(6), Tb(7),Dy(8),Er(9),Tm(10)和Yb(11)],[NdCp t 3 ](12),[CeCp tt 3 ](13)和[NdCp tt 3 ](14)的[Cp - [R =η 5 -C 5 H ^4 CH(森达3)2中,Cp吨=η 5 -C 5 H ^ 4(森达2卜吨)中,Cp TT =η 5 -C 5 H ^ 3(森达2卜吨)2 -1,3],有通过无水镧系元素(III)卤化物与适当的环戊二烯酸钠或环戊二烯化钾在THF中的反应合成α-己内酰胺。通过1 H,13 C和29 Si-NMR光谱(1-5和12-14)确定了这些配合物的特征。),元素分析和质谱。早期的顺磁性镧系元素络合物2 – 5和12 – 14具有非常尖锐的1