The rate coeffkient for reaction between NOz and dimethyl sulphide has been measured to be ( 1 .O + 0.2) x 10 -I2 cm -3 molecule-' s-' independent of temperature between 278 and 318 K. No evidence was found for a reaction channel producing NO2 and dimethyl sulphoxide.
Room temperature rate coefficient for the reaction between CH3O2 and NO3
โ Scribed by J. N. Crowley; J. P. Burrows; G. K. Moortgat; G. Poulet; G. LeBras
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 507 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0538-8066
No coin nor oath required. For personal study only.
โฆ Synopsis
The molecular modulation spectroscopic technique was employed to study the kinetics of NO3 radicals produced in the 253.7 nm photolysis of flowing gas mixtures of HNO3/CH4/O2 at room temperature. By computer fitting of the NO, temporal behavior, a rate coefficient of (2.3 ? 0.7) x lo-'' cm3 molecule-' s-l was obtained for the reaction between NO3 and CH302 at 298 K.
๐ SIMILAR VOLUMES
The CHsOs radical was generated by pulsed laser photolysis and was detected directly by photoionization mass spectrometry. The radical was photoionized by the Ar resonance lines ( 11.62 and 11.83 eV) and detected as the parent ion, CHsO: . Reactions of CH302 and CDs02 with NO were studied by time-re
The reacttonsof CH30z nitIt SO2 and NO haw been studied bv steady state photo&s of azomethane in the presence of Ot-SOz-SO mixtures at 196 M and I ;Ltm total pressure. Thr quantum yield of NO otidntion by CHxO= m.dicxG is increased substanthlIy when SO? is added ro the system indicating an SOa induc
## Abstract Measurements of the rate coefficient of the reaction (O^3^__P__) + NO~2~ โ O~2~ + NO have been made at 296ยฐK and 240ยฐK, using the technique of NO~2~\* chemiluminescent decay. Values of 9.3 ร 10^โ12^ cm^3^ molec^โ1^ sec^โ1^ at 296ยฐK and 10.5 ร 10^โ12^ cm^3^ molec^โ1^ sec^โ1^ at 240ยฐK wer
Rcccivcd 30 Apnl 1982 SO:, photodissociation at 193 nm (AIF cxclmer lmr) ha been used to create SO radicals; the chcmdumincsccncc from the SO + 03 reaction has been used to follow the SO ndical decay. Rate coefticicnls at 298 K of (1 07 t 0.16) x 10-r6, (1 06 f 0 16) x 10-r3, and (1 48 k 0 20) x IO-
CS radicals have been produced by photodissociation of CS2 at 193 MI and their disappearance monitored by LIF\_ The vibrationally excited CS radicals rapidly relax to CS(v = 0). At 298 K, the rate coeffkients for CS(u = 0) reactions with 02, 03 and NO\* are (2.9 +\_ 0.4) x lo-", (3.0 + 0.4) X lo-I6