Premium
Metastable ion study of organosilicon compounds VI —triethoxymethylsilane and tetraethoxysilane
Author(s) -
Tabei Eiichi,
Mori Shigeru,
Okada Fumio,
Tajima Susumu,
Ogino Kazuo,
Tanabe Hirotaka,
Tobita Seiji
Publication year - 1993
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210280425
Subject(s) - organosilicon , chemistry , ion , molecule , deuterium , methylene , acetaldehyde , mass spectrometry , radical , alkoxy group , hydrogen , metastability , electron ionization , medicinal chemistry , organic chemistry , ethanol , physics , alkyl , chromatography , quantum mechanics , ionization
The fragmentations of triethoxymethylsilane ((C 2 H 5 O)3SiCH 3 (1)) and tetraethoxysilane ((C 2 H 5 O)4Si (3)) induced by electron impact were investigated by mass‐analysed ion kinetic energy (MIKE) spectrometry and a deuterium‐labelling study. These molecular ions begin to fragment by the loss of methyl, ethyl and/or ethoxy radicals. Almost complete scrambling of methylene hydrogen takes place in these resultant intermediate ions, prior to the elimination of acetaldehyde molecule. The fragmentations of [1] +˙ and [3] +˙ were compared with those of the corresponding carbon analogues, 1,1,1‐triethoxyethane ((C 2 H 5 O) 3 CCH 3 (2)) and tetraethoxymethane ((C 2 H 5 O) 4 C (3)), respectively.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom