The absolute rate constants for the gas-phase H-atom abstraction by hydroxyl radicals from cyclohexane and ethane have been determined at room temperature. OH radicals were produced by pulse radiolysis of an H,O-Ar mixture, and the decay of OH was followed by monitoring the transient light absorpti
Absolute rate constants of the reactions of OH with cyclohexane and ethane at 296 ± 2 K by the discharge flow method
✍ Scribed by Nourredine Bourmada; Christian Lafage; Pascal Devolder
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 535 KB
- Volume
- 136
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
We present absolute measurements of the rate constant for the reactions of OH with cyclohexane: k, = (8.6 rtO.8) x lo-" cm3 molecule-' s-l and with ethane: k3= (2.74f0.3) x lo-l3 cm3 molecule-* s-l, both measured at room temperature by discharge flow resonance fluorescence. Our result fork, is above the average of two previously published measurements, but is in agreement with the preferred values of two recent reviews, as deduced from either relative measurements or theoretical correlations.
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