Threshold Energies and Unimolecular Rate Constants for Elimination of HF from Chemically Activated CF 3 CH 2 CH 3 and CF 3 CH 2 CF 3 : Effect of CH 3 and CF 3 Substituents at the β-Carbon and Implications about the Transition State
✍ Scribed by Ferguson, Heather A.; Ferguson, John D.; Holmes, Bert E.
- Book ID
- 127215922
- Publisher
- American Chemical Society
- Year
- 1998
- Tongue
- English
- Weight
- 69 KB
- Volume
- 102
- Category
- Article
- ISSN
- 1089-5639
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📜 SIMILAR VOLUMES
The rate constants for the reactions of OH radicals with CH 3 OCF 2 CF 3 , CH 3 OCF 2 CF 2 CF 3 , and CH 3 OCF(CF 3 ) 2 have been measured over the temperature range 250-430 K. Kinetic measurements have been carried out using the flash photolysis, laser photolysis, and discharge flow methods combine
Rate constant ratios, k d /k c , for the disproportionation/combination reaction at a temperature of 295 Ϯ 2 K, have been measured as 0.034 Ϯ 0.009 for the collision between CF 3 CH 2 CF 2 ϩ CF 3 radicals and as 0.075 Ϯ 0.019 for CF 3 CH 2 CF 2 ϩ CF 3 CH 2 CF 2 radicals. The effect of the two fluori
Disproportionation/combination rate constant ratios, k , / k , , have been measured for the collision between CF3CH2CH2 and CF3 radicals to be 0.022 ? 0 002 and for CF3CH2CH2 and CF3CH2CH2 radicals to be 0.100 IT 0.002. Comparison to previous work from this laboratory for the reaction of CF3CH2CHCI