Filtern
Volltext vorhanden
- nein (1)
Erscheinungsjahr
- 2012 (1) (entfernen)
Dokumenttyp
- Wissenschaftlicher Artikel (1) (entfernen)
Sprache
- Englisch (1)
Gehört zur Bibliographie
- ja (1) (entfernen)
Schlagworte
- Dynamic NMR spectroscopy (1) (entfernen)
Institut
1-Isopropyl-3-methyl-3-phenyl-1,3-azasilinane 1 and 1-isopropyl-3,3-dimethyl-1,3-azasilinane 2 were synthesized and a detailed analysis of their NMR spectra, conformational equilibria and ring inversion processes is presented. Low temperature H-1/C-13 NMR spectroscopy, iteration of the H-1 NMR spectra and quantum chemical calculations showed slight predominance of the PheqMeax over the PhaxMeeq conformer of 1 at low temperature. The barrier for the chair to chair interconversion of both compounds was measured to be 8.25 kcal/mol.