Gas phase reactions of CF3, C2F5, and n-C3F7 with carbon tetrachloride
✍ Scribed by C. M. de Vöhringer; E. H. Staricco
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 245 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0538-8066
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✦ Synopsis
The reactions of some perfluoroalkyl radicals with carbon tetrachloride have been studied using the photolysis of the corresponding perfluoroalkyl iodide as the free radical source. The Arrhenius parameters, based on the value of 2.3 x 1013 cm3 mol-' s-' for the self-combination rate constant of all radicals are: Reaction log(A/cm3 mol ' s-') E/kcal mol ~ ' CF3 + CCl, 12.8 11.3 C,F, + CCl, 12.8 11.6 n -C,F, + CC1,
📜 SIMILAR VOLUMES
bond lengths are 1.109(2) and 1.103(5) , respectively, which are among the shortest observed to date. Tris(pentafluoroethyl)borane carbonyl and (C 3 F 7 ) 3 BCO slowly decompose at room temperature to yield CO, difluoroperfluoroalkylboranes and perfluoroalkenes. The decomposition of (C 2 F 5 ) 3 BCO
## Abstract Perfluorocarboxylic acids and their anions (PFCAs), such as perfluorooctanate (C~7~F~15~C(O)O^−^), have been generally recognized to be global pollutants and are believed to persist in the environment. Kinetic data for reactions of sulfate anion radicals (SO~4~^−^) with PFCAs are needed
Absolute rate constants a t room temperature for the metathesis reaction C~FS + Br2 C2FSBr + Br and nd3F7 + Br2 CzFTBr + Br have been measured under V L P P conditions: The radicals were generated through collisionless infrared-multiphoton decomposition of the corresponding iodides by irradiation f
CF3 radicals were generated by the photolysis of perfluoroacetic anhydride. In the presence of pentafluorobenzene, the CF3 radicals react according to the following mechanism: It was found that the addition reaction (3) becomes reversible above ca. 453 K. The addition rate parameters have been rev