- Intermediacy of ion neutral complexes in the fragmentation of short-chain dialkyl sulfides
-
The main fragmentation processes after electron ionization of butyl methyl and butyl ethyl sulfides are rationalized by the intermediacy of the ion neutral complex [RSH · methylcyclopropane](+·) as demonstrated by extensive labeling and collision activation studies.
- Filsak,Budzikiewicz
-
p. 601 - 610
(2007/10/03)
-
- Reaction of hydrogen atoms with diethylsulfide
-
In the reactions of H atoms, generated by the Hg(3P1)-sensitized decomposition of H2, with C2H5SC2H5 the primary reaction has been established to be with k1 = (4.7 +/- 0.9) * 1013 exp cm3 mol-1 s-1 relative to the rate constant of the H + C2H4 --> C2H5 reaction.The mechanism postulated explains adequately all the experimental observations.The entropy of activation for the primary reaction, -22.1 eu is close to the value obtained for the H + CH3SCH3 reaction, suggesting a transition state with similar structure.H atoms do not abstract hydrogen from diethylsulfide, but the ethyl radicals from reaction on do with a rate coefficient of k = (7.4 +/- 0.5) * 1013 exp cm3 mol-1 s-1.
- Ekwenchi, Mbanefo Mbonu,Safarik, Imre,Strausz, Otto Peter
-
p. 3226 - 3231
(2007/10/02)
-