Absolute rate constants for the gas-phase ozonolysis of isoprene and methylbutenol

2004 ◽  
Vol 36 (3) ◽  
pp. 152-156 ◽  
Author(s):  
N. Klawatsch-Carrasco ◽  
J. F. Doussin ◽  
P. Carlier
Keyword(s):  
Gas Phase ◽  
Rate Constants ◽  
Absolute Rate

The reactions of O(3P) with 2-propanone, 2-butanone, and 3-pentanone

1986 ◽  
Vol 64 (7) ◽  
pp. 1408-1414 ◽  
Author(s):  
John M. Roscoe
Keyword(s):  
Gas Phase ◽  
Rate Constants ◽  
Substrate Concentration ◽  
Activation Energies ◽  
Absolute Rate ◽  
The Absolute

The reactions of O(3P) with 2-propanone, 2-butanone, and 3-pentanone have been studied kinetically as a function of temperature and substrate concentration. The absolute rate constants for these reactions in the gas phase, in the units M−1 s−1, obey the following relations.[Formula: see text]The activation energies for these reactions are comparable to those for the reactions of O(3P) with alcohols, but the preexponential factors for the reactions of O(3P) with these ketones are significantly smaller than those for the analogous reactions with alcohols. The available data indicate that the reactivity of O(3P) toward ketones shows a variation with polar effects of substituents which is similar to that found for the reactions of OH with ketones.

The reactions of O(3P) with the butanols

1983 ◽  
Vol 61 (12) ◽  
pp. 2716-2720 ◽  
Author(s):  
John M. Roscoe
Keyword(s):  
Free Energy ◽  
Gas Phase ◽  
Rate Constants ◽  
Substrate Concentration ◽  
Kinetic Data ◽  
Absolute Rate ◽  
Gas Phase Reactions ◽  
Linear Free Energy ◽  
Different Types ◽  
Energy Relations

The reactions of O(3P) with the butanols were studied kinetically as a function of temperature and substrate concentration. The absolute rate constants for the gas phase reactions, in the units M−1 s−1, obey the following relations.[Formula: see text]The results suggest that although the α-CH bond in these alcohols is the most reactive one, reaction of O(3P) with other CH bonds in the alcohols is also appreciable. The kinetic data for these and other alcohols are separated into contributions from the different types of CH bonds and the results are discussed in terms of linear free energy relations.

Absolute rate constants for the gas-phase reaction of OH radicals with cyclohexane and ethane at 295 K

1986 ◽  
Vol 128 (2) ◽  
pp. 168-171 ◽  
Author(s):  
Ole J. Nielsen ◽  
Jette Munk ◽  
Palle Pagsberg ◽  
Alfred Sillesen
Keyword(s):  
Gas Phase ◽  
Rate Constants ◽  
Oh Radicals ◽  
Phase Reaction ◽  
Absolute Rate ◽  
Gas Phase Reaction

Absolute rate constants for the gas-phase reactions of silylene with silane, disilane and the methylsilanes

1990 ◽  
Vol 86 (1) ◽  
pp. 27 ◽  
Author(s):  
James E. Baggott ◽  
H. Monty Frey ◽  
Phillip D. Lightfoot ◽  
Robin Walsh ◽  
Ivy M. Watts
Keyword(s):  
Gas Phase ◽  
Rate Constants ◽  
Absolute Rate ◽  
Gas Phase Reactions
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