| Autor: |
Gustavo A. Argüello, Karina Bierbrauer, Fabio E. Malanca, Malisa S. Chiappero |
| Rok vydání: |
2002 |
| Předmět: |
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| Zdroj: |
Journal of Photochemistry and Photobiology A: Chemistry. 149:9-13 |
| ISSN: |
1010-6030 |
| Popis: |
CF 3 CF 2 C(O)F is a suitable source to generate the title radicals which can recombine to give back the precursor or lead to the formation of C 4 F 10 , CF 2 O and CO. We performed the photolysis of CF 3 CF 2 C(O)F pure and in the presence of c -C 6 H 12 or (FCO) 2 (oxalylfluoride), following the concentration of the different species by FTIR spectroscopy. The rate constant for the reaction CF 3 CF 2 +FCO→CF 3 CF 2 C(O)F was obtained through a simulation using both our experimental data and bibliography data available. The value found is (6.8±0.8)×10 −12 cm 3 molecule −1 s −1 and it is not substantially different from the rate constant (4.2±0.5)×10 −12 cm 3 molecule −1 s −1 obtained for the reaction of CF 3 and FCO radicals. Thus, it was concluded that the length of the carbon chain does not affect the mechanism nor the rate constant value when it is compared with the CF 3 +FCO system. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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