Energetic H atoms produced by photolysis of gaseous HI react with CD,Br by D abstraction (1) and Br abstraction (2) and possibly also by the substitution reactions (4) and (5).
Reaction of hot hydrogen atoms with chloromethane
โ Scribed by P.L. Gould; G.A. Oldershaw; A. Smith
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 192 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
The integral reaction probability for the reaction of hot hydrogen atoms with CH,CI, H* c CH,CI + HCI + CH3. has been determined
as a function of the initial energy of the H atoms. The apparent threshold en;-rgy for the &action. which is expected IO be higher than the true threshofd. is 47r 14 kJ mol-'.
๐ SIMILAR VOLUMES
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Hydrogen atoms, generated by the mercury (3P1) sensitization of Hz, were allowed to react with dimethyldisulfide in the temperature range of 25-155'C. The only retrievable product is methanethiol, formed in the primary metathetical reaction H + CH3SSCH3 k,' CH3SH t CH3S. The intermediacy of thiyl ra
The reaction of photochemically generated energetic hydrogen atoms with 1-chloropropane, reaction ( l ) , (1) has been examined for translational energies of H' in the range 40 to 110 kJ mol-'. Integral probabilities for reaction (1) have been determined, and the phenomenological threshold energy
H atoms react with CzH5SSC;H5 to give CzH5SH as the sole retrievable product with d~ = 2.32 a t 25ยฐC and 2.84 a t 145ยฐC. The primary reaction is postulated to be H + CzHsSSCzH5 CzH5SH + CzH5S with k l = (4.73 f 0.64) X exp [-(1710 f 69)/RT] cm3/mol-s relative to the rate constant of the H + CzH4 -Cz
Rate coefficients for the reaction of Cl atoms with CH 3 Cl (k 1 ), CH 2 Cl 2 (k 2 ), and CHCl 3 (k 3 ) have been determined over the temperature range 222-298 K using standard relative rate techniques. These data, when combined with evaluated data from previous studies, lead to the following Arrhen