Hydrogen abstration from H,S by CF, radicals, generated by the photolysis of both CF,COCF, and CF,I. has been studied in the temperature range 314-434 K. The rate constant, based on the value of lo', 36 cm3/mol . s for the recombination of CF, radicals, is given by log h, = (12.20 I 0.05) -(19,220 2
Reaction of CF3 radicals with C2H6
โ Scribed by Haluk Arican; Neville L. Arthur
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- English
- Weight
- 333 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0538-8066
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โฆ Synopsis
The hydrogen transfer reaction between C2H6 and CFs radicals, generated by the photolysis of CF31, has been studied in the temperature range 298-617 K. The rate constant, based on the value of 1013 36 cm3 mo1-l s-' for the recombination of CFs radicals, is given by log kp = (11.90 2 0.09) -(33230 _t 740)/19.145 T
where k , is in cm3 mol-' s-1 and E is in J mol-'. These results are compared with those previously reported, and the following best value for k , is recommended: log k , = (11.94 * 0.07)
๐ SIMILAR VOLUMES
The reaction of CF3 radicals with Ha0 (D20) has been studied over the range of 533-723 K using the photolysis and the pyrolysis of CFJ as the free radical source. Arrhenius pa- rameters for the reactions where X = H or D, relative to CF:j radical recombination are given by log kHlkf'2 = (5.12 f 0.1
## Abstract Arrhenius parameters have been measured for the abstraction of hydrogen from the C Si, Ge, and Sn tetramethyls: The rate constants correlate with the proton chemical shift, which is related to a polar effect. In all cases except carbon, a hotโmolecule ฮฒโfluorine rearrangementโeliminat
## Abstract The relative rate technique has been used to determine the rate constants of the reactions of OH radicals with CF~3~CCl๏ฃพCCl~2~ (__k__~1~), CF~3~CCl๏ฃพCClCF~3~ (__k__~2~) and CF~3~CF๏ฃพCFCF~3~ (__k__~3~). Experiments were carried out at (298ยฑ2) K and atmospheric pressure using ultrapure nitr