A relative rate technique has been used to study the title reaction over the pressure range 100-700 Torr of air at 296 + 2 K. Four different reference compounds (13CO, CH4, CH2FCI, and CD 4) were used. Using k(CF30 + CH 4) = (2.2 -1-0.2) Γ 10-14 cm 3 molecule-1 s-1 a rate constant of k(CF30 + 03) =
Reactions of CF3O radicals with selected alkenes and aromatics under atmospheric conditions
β Scribed by Christina Kelly; Howard W. Sidebottom; Jack Treacy; Ole John Nielsen
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 451 KB
- Volume
- 218
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Rate data for the reactions of CFsO radicals with alkenes and aromatic compounds have been determined at 298 K using a relative rate method. The data are analyzed in terms of structure-reactivity relationships, and their importance to the atmospheric chemistry of CFsO discussed.
π SIMILAR VOLUMES
The relative hydroxyl radical reaction rate constants from the simulated atmospheric oxidation of selected acetates and other esters have been measured. Reactions were carried out at 297 2 2 K in 100-liter FEP Teflon@-film bags. The OH radicals were generated from the photolysis of methyl nitrite in
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
A flow system has been developed to study relative rate coefficients of hydroxyl radicals reacting with alkanes under conditions relating to tropospheric chemistry. Relative Arrhenius parameters have been measured over the temperature range 243-328 K for pairs of alkanes from a list consisting of n-
The rate constant for the gas-phase reaction of the hydroxyl radical with trifluoroacetic acid has been determined over the temperature range 283-323 K using a relative rate technique. The results provide a value of k( OH+CF,C(O)OH) = 2.O~lO-\*~exp(-l46~500/T)cm~molecule~'s-'basedonk(OH+C~H,)=7.8~lO