Preparative and Spectroscopic Studies on Volatile Silyl‐ and Alkylhydroxylamines

Norbert W. Mitzel, Hubert Schmidbaur

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12 Scopus citations

Abstract

(Hydridosilyl)hydroxylamines have been prepared from the corresponding chloro‐ and bromosilanes and alkylated hydroxylamines in the presence of an auxiliary base (NEt3, TMEDA). Dimethylsilyl groups were introduced in order to obtain open chain silylhydroxylamines, while α,ω‐disilylalkane groups were employed for cyclic species. In mass spectral studies a nitrene extrusion was found to be one of the main fragmentation processes. 15N, 17O (and 1H, 13C, 29Si) heteronuclear NMR studies were carried out for a larger series of silylated and alkylated hydroxylamines. The 17O and 15N chemical shifts are clearly distinguished from those of other compounds containing saturated nitrogen and oxygen centers. The one bond coupling constants 1J(15N29Si) indicate a pyramidal coordination of nitrogen in silylhydroxylamines.

Original languageEnglish
Pages (from-to)1087-1092
Number of pages6
JournalZeitschrift fur Anorganische und Allgemeine Chemie
Volume620
Issue number6
DOIs
StatePublished - 1994
Externally publishedYes

Keywords

  • Hydroxylamines, NMR
  • Silicon oxynitride
  • Silylhydroxylamines

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