Results obtained from the photolysis of ketene with acetylene strongly support the formation of C,H, radicals in the title reaction. Stationary state studies are interpreted in terms of the reaction C,H: 5 C,H, + H with a rate constant (log8 s '1 which is compared to RRKM predictions. In pulsed lase
A long-lived C2H3ClBr* radical from the reaction of atomic chlorine with vinyl bromide
โ Scribed by R.Subramonia Iyer; F.S. Rowland
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 530 KB
- Volume
- 103
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Concentration-time profiles have been measured for hydroxyl radicals generated by the shock-tube decomposition of hydrogen peroxide in the presence of a variety of additives. At temperatures close to 1300"K, the rate constants for the reaction OH + R H + R + HzO arr found to be in the ratio 0.18:0.
The following gas-phase reactions: (1) ( 2 ) were studied by the competitive method with CF,I as the source of radicals. The kinetic parameters obtained in the temperature range 533-613 K and 503-613 K respectively for chlorine atom transfer reactions are given by: log hl/h,"(cm3 mol-" s -") = 16
## Abstract Pulse radiolysis techniques were used to measure the gas phase UV absorption spectra of the title peroxy radicals over the range 215โ340 nm. By scaling to ฯ(CH~3~O~2~)~240 nm~ = (4.24 ยฑ 0.27) ร 10^โ18^, the following absorption cross sections were determined: ฯ(HO~2~)~240 nm~ = 1.29 ยฑ 0
Ra?e constants for the reaction of 0(3P) atoms with CaH4, CaHB and NO(M = NpO) have been measured over the temperature range 300-392ยฐK using a modulation-phase shifi technique. The Arrhenius expressions obtained are: C2H4, k2 = 3.37 X 10' exp[-(1270 -f 200)/RT] liter mole-' see-', CJH~, kz = 2.08 x