The title reaction was studied by the direct time-resolved laser-induced lluorescence method at room temperature. The rate constants for the forward and reverse reactions were measured to be (1.92 0.5) x lo-" cm3 molecule-' s-l and (7.4&2.5)x IO4 s-', respectively. The rate constant forthe reaction
OCS formation in the reaction of OH with CS2
โ Scribed by B.M.R. Jones; J.P. Burrows; R.A. Cox; S.A. Penkett
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 370 KB
- Volume
- 88
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
A steady-state system involvmg phato~s~ of HONO asa source of OH was used to ~~e5trgate the reaction of OH wtth CS2 at 1 atm and 295 Ii. In the presence of 02 (240 Torr) a rapid reaction of OH with CSz occurs giving OCS. At lower Oz concentrafionq 0C.S formation ceases. fn au the overall rate constant for OH + CS2 + OCS was (I.7 i 0.9) x W2 cm3 molecule-' s-' *
๐ SIMILAR VOLUMES
Rate constants for the reaction of OH radicals with CCS and CS, have been determined at 296 K using the flash photolysis resonance fh~orescen~ technique. The values derived from this study are kOH +mS = (5.66 \* 1.21) X lo-l4 cm3 mokcuk-' s-l a& \_+OH + CS2 = (1 .I35 2 0.34) X lOmu cm3 molecu!e-' s-
The reaction of OH radicals with CS2 has been investigated by the application of Fourier transform infrared spectroscopy using both photolytic and nonphotolytic competitive techniques in a 420-L reaction chamber at different pressures over the temperature range of 264-293 K. The measured effective r
Pulsed laser photolysis/laser-induced fluorescence (LIFI is utilized to measure absolute rate constants of CH radical reactions as a function of temperature and pressure. Multiphoton dissociation of CHBr, at 266 nm is employed for the generation of C H (X'I1) radicals. The C H radical relative conce
The rate constant of the reaction between OH and OCS in helium over the temperature range 255-483 K has been determined using the discharge flow-resonance fluorescence technique. The OCS has been carefully purified to avoid interference from HgS and CO impurities. An FTIR with a multireflection cell
OCS+ (x-z) emission has heen observed from the thermal energy charge transfer reaction between N; ions and OCS molecules. The rotational temperatures of the OCS+ (A 21T,: O") state were estimated to be 23OOk 300 K for D = 3/2 and 3300 + 500 K for O= 112, by assuming a single Boltzmann distribution.