Preparative, spectroscopic, and structural studies on some new silylamines

Nobert W. Mitzel, Jürgen Riede, Annette Schier, Martin Paul, Hubert Schmidbaur

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30 Scopus citations


The synthesis and characterization of two complete series of benzyl(phenylsilyl)amines (PhH2Si)x(PhH2C)3 — xN, benzyl(p‐tolylsilyl)amines (p‐H3CC6H4H2Si)x(PhH2C)3 — xN, and of bis‐(p‐tolylsilyl)amine are described. The compounds have been prepared from the corresponding amines and chlorosilanes with triethylamine as the auxiliary base. Bis(phenylsilyl)(trimethylsilyl)amine, (PhH2Si)2NSiMe3 (10), was obtained by the reaction of lithium bis(phenylsilyl)amide with chlorotrimethylsilane. Crystal structure analyses reveal that dibenzyl(p‐tolylsilyl)amine (7) and 10 contain planar nitrogen atoms. Heteronuclear NMR spectra (1H, 13C, 15N, and 29Si) have been measured for all compounds. The 15N chemical shifts are shown to be sensitive to variations of the geometry at the nitrogen atom. The coupling constants 1J(15N29Si) show a linear correlation with the N—Si bond lengths.

Original languageEnglish
Pages (from-to)2027-2032
Number of pages6
JournalChemische Berichte
Issue number9
StatePublished - Sep 1993
Externally publishedYes


  • Nitrogen configuration
  • Silazanes
  • Silylamines


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