Laser photolysis of O3/H2 mixtures: The yield of the H + O3 -> HO2 + O reaction

Article abstract of DOI:10.1063/1.441260

The collisional deactivation of O(2¹D₂) by H2 and D2 was found to proceed with a rate constant 1.0 +/- 0.1 * 10^-10 cm³ molecule^-1 sec^-1.The hydrogen atoms produced by O(2¹D₂) + H2 -> OH + H were observed to react with the O3 source molecule with the rate coefficient 3*10^-11 cm³ molecule^-1 sec^-1.Oxygen atoms were seen to be formed with a similar rate and approximately 40percent of the reactive encounters of H with O3, were estimated to result in the production of oxygen atoms instead of the expected OH^<*> and O2.Possible mechanisms involving collisionally induced dissociation of O3 by vibrationally excited hydroxyl radicals do not appear to account for the observed oxygen atom kinetics in this system, thus suggesting that H + O3 -> HO2 + O may indeed be a significant pathway in the reaction of hydrogen atoms with ozone.

Full text of DOI:10.1063/1.441260

Laser photolysis of O3/H2 mixtures: The yield of the H+O3→HO2+O reaction
A. P. Force and J. R. Wiesenfeld
Citation: The Journal of Chemical Physics 74, 1718 (1981); doi: 10.1063/1.441260
View online: http://dx.doi.org/10.1063/1.441260
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/74/3?ver=pdfcov
Published by the AIP Publishing
Articles you may be interested in
Quantum yields for OH production from 193 and 248 nm photolysis of HNO3 and H2O2
J. Chem. Phys. 98, 6935 (1993); 10.1063/1.464735
Theoretical characterization of the minimum energy path for the reaction H+O2→HO2*→HO+O
J. Chem. Phys. 88, 6273 (1988); 10.1063/1.454466
Pulsed laser photolysis study of the reaction between O(3 P) and HO2
J. Chem. Phys. 78, 6629 (1983); 10.1063/1.444661
A laser flash photolysis kinetics study of the reaction OH+H2O2→HO2+H2O
J. Chem. Phys. 75, 4390 (1981); 10.1063/1.442602
HF Chemical Laser Produced by Flash Photolysis of F2O–H2 Mixtures
J. Chem. Phys. 48, 3821 (1968); 10.1063/1.1669689
This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP: 132.248.9.8
On: Mon, 22 Dec 2014 17:58:25

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP: 132.248.9.8
On: Mon, 22 Dec 2014 17:58:25

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP: 132.248.9.8
On: Mon, 22 Dec 2014 17:58:25

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP: 132.248.9.8
On: Mon, 22 Dec 2014 17:58:25

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP: 132.248.9.8
On: Mon, 22 Dec 2014 17:58:25

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP: 132.248.9.8
On: Mon, 22 Dec 2014 17:58:25

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP: 132.248.9.8
On: Mon, 22 Dec 2014 17:58:25