The Kinetics and Mechanism of the Reaction I 2 + C 3 H 6 →← C 3 H 5 I + HI and the Heat of Formation of the Allyl Radical 1
✍ Scribed by Golden, David M.; Rodgers, Alan S.; Benson, Sidney W.
- Book ID
- 127145457
- Publisher
- American Chemical Society
- Year
- 1966
- Tongue
- English
- Weight
- 319 KB
- Volume
- 88
- Category
- Article
- ISSN
- 0002-7863
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📜 SIMILAR VOLUMES
The gas-phase dehydrogenation of cyclopentene to cyclopentadiene catalyzed by iodine in. the range 178-283'C has been found to obey a rate law consistent with the slow rate-determining step, I + c-C5Hs --t HI + c-C5H, , log [ka/(l moleL1 sec-')I = 10.25 \* 0.08 -(12.26 f 0.18)/0, where 0 = 2.303RT i
The kinetics of the gas-phase dehydrogenation of cyclopentane to cyclopentene is found to be consistent with a slow attack by a n I atom (step 4, text) on cyclopentane in the range 282-382OC. The measured rate constants fit the Xrrhenius equation, log k, = 11.95 f 0.08 -(24.9 f 0.23)/0 1 mole-l sec-
The initial rates of formation of the major products in the thermal reactions of ethylene at temperatures in the neighborhood of 800 K have been measured in the presence and absence of the additives neopentane and ethane. It has been shown that in the absence of the additive the main initiation proc