Theoretical Prediction of the Heats of Formation of C 2 H 5 O • Radicals Derived from Ethanol and of the Kinetics of β-C−C Scission in the Ethoxy Radical
✍ Scribed by Matus, Myrna H.; Nguyen, Minh Tho; Dixon, David A.
- Book ID
- 126259778
- Publisher
- American Chemical Society
- Year
- 2007
- Tongue
- English
- Weight
- 187 KB
- Volume
- 111
- Category
- Article
- ISSN
- 1089-5639
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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
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 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