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Disproportionation reactions between alkyl and fluoroalkyl radicals. VII. Difluoromethyl with perfluoro‐ n ‐propyl and methyl radicals
Author(s) -
Pritchard G. O.,
Follmer D. W.,
Meleason M. A.,
Shoemaker D. D.,
Perkins J. C.,
Leupp S. L.
Publication year - 1992
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.550240807
Subject(s) - chemistry , radical , disproportionation , radical disproportionation , alkyl , medicinal chemistry , ketone , photochemistry , organic chemistry , catalysis
Mixtures of 1,1,3,3‐tetrafluoroacetone and perfluorodi‐ n ‐propyl ketone have been photolyzed together over the temperature range 50° to 200°C, and the disproportionation/combination ratio for n ‐C 3 F 7 and CF 2 H radicals has been determined to be Δ( n ‐C 3 F 7 , CF 2 H) = 0.072 ± 0.003. A reevaluation of existing data on CH 3 and CF 2 H radicals leads to a value of Δ(CH 3 , CF 2 H) = 0.35. The large variations in Δ for the reactions of alkyl and perfluoroalkyl radicals with CF 2 H radicals are discussed. © John Wiley & Sons, Inc.