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Disproportionation reactions between alkyl and fluoroalkyl radicals. VII. Difluoromethyl with perfluoro-n-propyl and methyl radicals

✍ Scribed by G. O. Pritchard; D. W. Follmer; M. A. Meleason; D. D. Shoemaker; J. C. Perkins; S. L. Leupp

Publisher: John Wiley and Sons
Year: 1992
Tongue: English
Weight: 493 KB
Volume: 24
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550240807

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✦ Synopsis

Abstract

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.

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