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On the gas‐phase free radical displacement reaction CH 3 + CD 3 COCD 3 → CD 3 + CH 3 COCD 3
Author(s) -
Knoll H.,
Richter Gislind,
Schliebs R.
Publication year - 1980
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550120904
Subject(s) - chemistry , arrhenius equation , radical , gas phase , atmospheric temperature range , thermal decomposition , methyl radical , free radical reaction , decomposition , elementary reaction , photochemistry , analytical chemistry (journal) , thermodynamics , kinetics , organic chemistry , activation energy , physics , quantum mechanics
The gas‐phase free radical displacement reactionhas been studied in the temperature range of 240–290°C and at 140°C with the thermal decomposition of azomethane (AM) and di‐ tert ‐butylperoxide (DTBP), respectively, as methyl radical sources. The reaction products of the CD 3 radicals were analyzed by mass spectrometry. Assuming negligible isotope effects, Arrhenius parameters for the elementary radical addition reactionwere derived:\documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm log}_{{\rm 10}} k_1 (cm^3 /mol\sec) = (10.5 \pm 0.4) - (11,500 \pm 1100)/4.576T $$\end{document}The data are discussed with respect to the back reaction and general features of elementary addition reactions.