Crystal structures of the chiral lithiosilanes [(Lis)-PhMe2SiLi•THF•(-)-sparteine] and [Ph2(NEt2)SiLi•(-)-sparteine]

被引:31
作者
Strohmann, C [1 ]
Däschlein, C [1 ]
Auer, D [1 ]
机构
[1] Univ Wurzburg, Inst Anorgan Chem, D-97074 Wurzburg, Germany
关键词
D O I
10.1021/ja057348k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The (-)-sparteine-coordinated lithiosilanes (Lis)-4 and 5 crystallize as monomers with coordination numbers of 4 and 3 on lithium and represent the first structurally characterized enantiopure lithiosilanes. Both systems are also monomeric in solution with Si-Li contacts detected by 29Si-7Li couplings in the 29Si NMR spectrum (for 5 even at room temperature). Copyright © 2006 American Chemical Society.
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页码:704 / 705
页数:2
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