✦ LIBER ✦

The kinetics of the reaction of O(3P) and D atoms with cyclohexane

✍ Scribed by Poongzag Kim; Richard B. Timmons

Publisher: John Wiley and Sons
Year: 1975
Tongue: English
Weight: 663 KB
Volume: 7
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550070114

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✦ Synopsis

Abstract

The kinetics of the reactions of O(^3^P) and D atoms with cyclohexane have been investigated using fast‐flow techniques. The rates of reaction were computed by monitoring changes in both atom and cyclohexane concentrations using electron spin resonance and mass spectrometric methods, respectively. The O(^3^P) + C~6~H~12~ reaction was studied over a temperature range of 344 to 513°K and we obtain a specific rate constant of (3.2±0.6) × 10^14^ exp (−4400±400/RT) cm^3^/mole˙sec for this reaction. The only reaction product detectable mass spectrometrically under flow conditions of excess oxygen atoms is formaldehyde.

The D + C~6~H~12~ reaction was studied over a temperature range of 297 to 596°K. A specific rate constant of (4.1±1.0) × 10^13^ exp (−4000±300/RT) cm^3^/mole˙sec was obtained for this reaction. On the basis of the results obtained in these studies, the important primary process in both the O(^3^P) and D atom reactions is concluded to be abstraction of a hydrogen atom from the cyclohexane molecule.

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