DIFFUSION AND HOT RADICAL KINETICS IN THE PHOTOLYSIS OF METHYL IODIDE IN CYCLOHEXANE
Solutions of methyl iodide in cyclohexane were photolyzed at 2537 A. Products and their quantum yields were: methane 0.190, cyclohexyl iodide 0.085, cyclohexene 0.057, icdine 0.045, hydrogen iodide 0.009. Methane is attributed to reaction of hot methyl radicals with solvent and to reaction of thermal methyl radicals with hydrogen iodide. Cyclohexene is attributed to a diffusion controlled reaction between cyclohexyl radicals and iodine atoms which remain in proximity after the hot reaction. Hydrogen iodide is twice as effective as iodine in reacting with methyl radicals. Recombination of methyl radical--iodine atom pairs foliowing dissociation varies exponentialiy with the square root of hydrogen iodide concentration, indicating a diffusion-controlled process. (auth)
- Research Organization:
- Univ. of Notre Dame, Ind.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-12-016206
- OSTI ID:
- 4308271
- Journal Information:
- Journal of the American Chemical Society (U.S.), Journal Name: Journal of the American Chemical Society (U.S.) Vol. Vol: 80; ISSN JACSA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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