VIRGIL BADESCU CONTRIBUTIONS TO THE INTERPRETATION OF MASS SPECTRUM OF HEXAETHOXYDISILOXANE LINKED SCANS AND M+1, M+2 ISOTOPIC EFFECTS
The aim of this article is the study of the fragmentation reactions of hexaethoxydisiloxane initiated by electronic impact in the ionization chamber of a double focusing mass spectrometer. The initiation center of fragmentation reactions is established by quantum calculations. The daughter ions of hexaethoxydisiloxane molecular ion are obtained by linked scan B/E. The primary fragmentation ions with the masses 341, 297, 296 and 269 were obtained experimentally by B/E linked scan by radical induced fragmentation reactions. The eliminations of neutral fragments such as hydrogen, acetaldehyde, ethylene and water from the primary ions and the obtained ions by consecutive elimination reactions were emphasized experimentally by the B/E(1-E)1/2 linked scan by charge induced reactions.
Keywords: hexaethoxydisiloxane, mass spectrum, linked scans, M+1, M+2 isotopic effects