Aminoderivate hydrierter Oligosilane: Darstellung,Charakterisierung und Eigenschaften

Summary 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 by²⁹Si-,¹H-NMR-and MS-investigations.