Aminoderivate hydrierter Oligosilane: Darstellung, Charakterisierung und Eigenschaften
摘要:
Amino derivatives of linear and branched tri- und tetrasilanes R2N-H2Si(SiH2)SiH2-NR2 H3SiSiHNR2SiHNR2SiH3, R2N-H2SiSiH2SiH2SiH2-NR2 und (R2N-H2Si)2SiHSiH(SiH2-NR2)2 with R = Et, SiMe3 are formed by the reaction of the corresponding bromooligosilanes with suitable amines or alkali metal amides. Product distribution and yields are strongly influenced by the nucleophilicity of the amino reagent and by the structure of the SiSi-backbone. The structures proposed for the aminopolysilanes thus prepared are proved by Si-29-, H-1-NMR- and MS-investigations.
Chlor-, Brom- und Iodtrisilane: Synthesen und 29Si-Kernresonanzspektren
作者:Karl Hassler、Wolfgang Köll
DOI:10.1016/s0022-328x(97)00108-3
日期:1997.8
Halogenated trisilanes XnSi3H8-n with X = Cl, Br, I and n = 2-7 as well as the tetrasilanes H2XSiSiX2SiX2SiX2H have been prepared by dearylation of appropriate aryltrisilanes and aryltetrasilanes (aryl = phenyl, p-tolyl) with either liquid or gaseous hydrogen halides. The compounds have been characterized with elemental analysis as well as Si-29 NMR spectroscopy. (C) 1997 Elsevier Science S.A.