An unusual alkyltrihydroaluminate.: Crystal structures of [AlH2{C(SiMe3)2(SiMe2OMe)}(μ-H)Li(THF)], [AlCl2{C(SiMe2OMe)(SiMe3)2(THF)], and [Li{C(SiMe2OMe)(SiMe3)2}(THF)2] (THF = tetrahydrofuran)

被引:21
|
作者
Eaborn, C [1 ]
Hitchcock, PB [1 ]
Smith, JD [1 ]
Sozerli, SE [1 ]
机构
[1] Univ Sussex, Sch Chem Phys & Environm Sci, Brighton BN1 9QJ, E Sussex, England
关键词
D O I
10.1021/om9804024
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Reaction of the organolilitiun reagent [Li-{C(SiMe2OMe)(SiMe3)(2)}(THF)(2)] (THF = tetrahydrofuran), 1, with LiAlH4 gave the title organotrihydridoaluminate, 2, which is unusual for an alkali metal organotrihydridoaluminate in being monomeric and in having the Al linked to the Li not only through hydride but also through another of its ligands. The corresponding reaction with AlCl3 gave the title organoaluminum dichloride. The Si-O bonds in 1 and 2 are not significantly lengthened by the O-metal coordination. The bond from Li to the OMe in 1 oxygen is not significantly different in length from that to the THF oxygen.
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页码:4322 / 4325
页数:4
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