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Author(s):   Garton, D.J.; Minton, T.K.
Title:   Hyperthermal Reactions of O(3P) with Alkanes: Observations of Novel Reaction Pathways in Crossed-Beams and Theoretical Studies
Journal:   J. Phys. Chem. A
Volume:   107
Page(s):   4583 - 4587
Year:   2003
Reference type:   Journal article
Squib:   2003GAR/MIN4583-4587

Reaction:   O(3P) + C2H6CH3 + ·CH3
Reaction order:   2
Reference reaction:   O(3P) + C2H6 → Products
Reference reaction order:   2
Rate expression:   8.0x10-2
Category:  Experiment
Data type:   Absolute value measured directly
Pressure dependence:   None reported
Experimental procedure:   Molecular beam
Excitation technique:   Other
Time resolution:   In real time
Analytical technique:   Mass spectrometry
Comments:   The authors investigated the reactions of O(3P) with CH4, CH3CH3, and CH3CH2CH3 at center-of-mass collision energies in the range of 2.8-3.9 eV using crossed-beams experiments and with direct dynamics calculations. The experiments and calculations both provide evidence for previously unobserved reaction pathways which principally lead to O-atom addition and subsequent H-atom elimination or C-C bond breakage. Reaction paths were identified by a combination of experiment and calculation with channels less than 3% having been identified only by theory.

The main interest of this paper lies in the characterization of the reaction dynamics at higher collision energies (2.8 to 3.9 eV) due to interest in structural damage to spacecraft in low earth orbit.

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