๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Kinetics of the reactions of atomic chlorine with H2S, D2S, CH3SH, and CD3SD

โœ Scribed by J. M. Nicovich; S. Wang; P. H. Wine

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
662 KB
Volume
27
Category
Article
ISSN
0538-8066

No coin nor oath required. For personal study only.

โœฆ Synopsis

Time-resolved resonance fluorescence detection of atomic chlorine following 266-nm laser flash photolysis of ClZCO/RSR'/N2 mixtures has been employed to study the kinetics of C1 reactions with HzS(kl), CH3SH(kz), DzS(k3), and CDsSD(k4) as a function of temperature (193-431 K) and pressure (25-600 torr).

Arrhenius expressions which describe our results are (units are ~m ~m o l e c u l e -~s -~; uncertainties are 2u, precision only) k l = (3.69 t 0.33) exp[(208 t 24)/T], kz = (11.9 ? 1.7) exp[(l51 2 38)/T], and K3 = (1.93 t 0.32) exp[(168 t 42)/T]. The C1 + CD3SD reaction has been studied at 299 K and 396 K, values for K4 at these two temperatures are essentially the same as those measured for Kz. Our results are compared with earlier studies and the mechanistic implications of observed negative activation energies and H-D kinetic isotope effects are discussed.

๐Ÿ“œ SIMILAR VOLUMES

Kinetics of the reactions of chlorine at
Kinetics of the reactions of chlorine atoms with CH3ONO and CH3ONO2
โœ O. Sokolov; M. D. Hurley; J. C. Ball; T. J. Wallington; W. Nelsen; I. Barnes; K. ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 104 KB ๐Ÿ‘ 2 views

The kinetics of the reactions of Cl atoms with CH 3 ONO and CH 3 ONO 2 have been studied using relative rate techniques. In 700 Torr of nitrogen diluent at 295 is in good agreement with the literature data. The result for k(Cl ฯฉ CH 3 ONO) is a factor of 4.5 lower than that reported previously. It s

Kinetics and mechanism for the reactions
Kinetics and mechanism for the reactions of H atoms with CH3SH and C2H5SH
โœ D. Martin; J. L. Jourdain; G. Le Bras ๐Ÿ“‚ Article ๐Ÿ“… 1988 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 462 KB ๐Ÿ‘ 1 views

A kinetic study of the reactions of H atoms with CH,SH and C2H6SH has been carried out at 298 K by the discharge flow technique with EPR and mass spectrometric analysis of the species. The pressure was 1 torr. It was found: k1 = (2.20 \* 0.20) x lo-'' for the reaction H + CH3SH (1) and k2 = (2.40 t

A kinetic and product study of reaction
A kinetic and product study of reaction of chlorine atom with CH3CH2OD
โœ Mary A. Crawford; Zhuangjie Li; Heidi A. Heuerman; Douglas Kinscherff ๐Ÿ“‚ Article ๐Ÿ“… 2004 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 101 KB ๐Ÿ‘ 2 views

## Abstract The reaction of atomic chlorine with CH~3~CH~2~OD has been examined using a discharge fast flow system coupled to a mass spectrometer combined with the relative rate method (RR/DF/MS). At 298 ยฑ 2 K, the rate constant for the Cl + CH~3~CH~2~OD reaction was determined using cyclohexane as

Does the HO2 radical react with H2S, CH3
Does the HO2 radical react with H2S, CH3SH, and CH3SCH3?
โœ A. Mellouki; A. R. Ravishankara ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 655 KB

The kinetics of the title reactions were investigated in a discharge flow tube by using laser magnetic resonance detection of HO2. The upper limits for the bimolecular rate constants for the reactions of HO2 with H2S ( k l ) , CH3SH (k2), and CH3SCH3 ( k 3 ) are <3 X <4 X and <5 X cm3 molecule-l s-l