An absolute value of k, of ethyl radicals at 860 f 17ยฐK of 4.5 X l o 9 M-l.sec-' was determined under VLPP conditions, where the value of k,/k," should be about M. Thus k,"(M-'.sec-') -10' 0 at 860ยฐK. An error of as much as a factor of 2 in k, would be surprising, but possible. The value of lO'OM-'
Yet another direct measurement of the rate constant for the recombination of methyl radicals
โ Scribed by F. C. James; J. P. Simons
- Publisher
- John Wiley and Sons
- Year
- 1974
- Tongue
- English
- Weight
- 194 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0538-8066
No coin nor oath required. For personal study only.
โฆ Synopsis
Abstract
The decaying absorption of CH~3~ radicals at 216.4 nm has been followed over more than three halfโlives using a photoelectric splitโbeam kinetic spectrometer. The rate constant for recombination k~r~ was found to be (5.60 ยฑ 0.76) ร 10^โ11^ cm^3^/moleculeยทs.
๐ SIMILAR VOLUMES
The relative rate technique has been used to measure the rate coefficient for the reaction of the hydroxyl radical (OH) with methyl isobutyrate (MIB, (CH 3 ) 2 CHC(ฯญO)-O-CH 3 ) to be (1.7 ฯฎ 0.4) ฯซ 10 ฯช12 cm 3 molecule ฯช1 s ฯช1 at 297 ฯฎ 3 K and 1 atmosphere total pressure. To more clearly define MIB's
The rate constants of the gas phase reaction of OH radicals with dimethyl sulfide (CH3SCH3) over the temperature range 260-393 K have been studied using the discharge flow-resonance fluorescence technique. The rate constants were fitted by the Arrhenius equation k = (11.8 2 2.2) x exp[-(236 2 150)/T
## Abstract The rate constant for the gasโphase reaction of hydroxyl radical with isopropyl isocyanate (IIC) has been measured, relative to toluene, in the T = 287โ321 K range at atmospheric pressure in air. Ultraviolet photolysis of methyl nitrite served as the source of hydroxyl radical. The expe