CHEMISTRY OF ORGANOSILICON COMPOUNDS. CLXXXIII. AN ESR STUDY ON β-TRIMETHYLSILYLAMINE- AND RELATED AMINE-N-OXYLS. UNUSUAL CONFORMATIONAL PREFERENCE OF THE β-SILYL GROUP

Article abstract of DOI:10.1016/0022-328X(83)85156-0

Fifteen β-trimethylsilylamine- and related amine-N-oxyls were generated by oxidation of the parent amines with m-chloroperoxybenzoic acid.Studies on the preferred conformation of the radicals by ESR spectroscopy indicate that the β-trimethylsilyl group exerts a strong influence favouring the conformation in which the trimethylsilyl group lies in the same plane as the N-O bond.The ESR spectra of related alkyl radicals, as well as results of unrestricted CNDO/2 calculations on the silylmethylamine-N-oxyls, are discussed.