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The formation of C 3 H 3 (propynyl) radicals in the reaction of CH 2 ( 1 A 1 ) with acetylene
Author(s) -
CanosaMas Carlos E.,
Ellis Mark,
Frey H. Monty,
Walsh Robin
Publication year - 1984
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.550160905
Subject(s) - chemistry , radical , ketene , acetylene , reaction rate constant , photodissociation , rrkm theory , decomposition , chemical reaction kinetics , photochemistry , chemical kinetics , analytical chemistry (journal) , computational chemistry , medicinal chemistry , kinetics , organic chemistry , physics , quantum mechanics
Results obtained from the photolysis of ketene with acetylene strongly support the formation of C 3 H 3 radicals in the title reaction. Stationary state studies are interpreted in terms of the reaction\documentclass{article}\pagestyle{empty}\begin{document}$${\rm C}_3 {\rm H}_{\rm 4}^{\rm *} \buildrel3\over\rightarrow{\rm C}_3 {\rm H}_3^ \cdot + {\rm H}^ \cdot$$\end{document}with a rate constant (10 9.8 s −1 ) which is compared to RRKM predictions. In pulsed laser induced decomposition experiments, recombination products involving C 3 H 3 have been detected (some for the first time) and their formation modeled using step (3) with the same rate constant.