Kinetic energy dependence of Al+ + O2 -> AlO+ + O

Article abstract of DOI:10.1063/1.450497

The endothermic reaction of Al⁺ with O2 is studied using a guided ion-beam apparatus.The reaction cross section is measured as a function of kinetic energy from 0 to 20 eV.The threshold energy for the reaction, E₀, is determined from an empirical model to be 3.64+/-0.04 eV.Phase space calculations of the cross section performed with E₀ as the only adjustable parameter yield a similar result, E₀ = 3.60+/-0.02 eV, and predict the absolute magnitude of the reaction cross section within experimental error.We conservatively quote the threshold energy as 3.62+/-0.12 eV which is somewhat higher than the thermodynamic threshold calculated using literature thermochemistry, 3.40+/-0.16 eV.This may indicate that a slight barrier to the reaction exists, or that AlO⁺ is produced in an excited state, or that the literature thermochemistry needs revision.Our results suggest D₀⁰(AlO⁺)<*>1.50+/-0.12 eV and I.P. (AlO) <*>9.75+/-0.13 eV.

Full text of DOI:10.1063/1.450497

Kinetic energy dependence of Al++O2→AlO++O
M. E. Weber, J. L. Elkind, and P. B. Armentrout
Citation: The Journal of Chemical Physics 84, 1521 (1986); doi: 10.1063/1.450497
View online: http://dx.doi.org/10.1063/1.450497
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/84/3?ver=pdfcov
Published by the AIP Publishing
Articles you may be interested in
Reaction dynamics of Al + O2 → AlO + O studied by a crossed-beam velocity map imaging technique: Vib-
rotational state selected angular-kinetic energy distribution
J. Chem. Phys. 140, 214304 (2014); 10.1063/1.4879616
Temperature Dependent Anomalous Hall Effects in DMS Zn(Fe, Al)O Epitaxial Thin Film
AIP Conf. Proc. 1349, 1045 (2011); 10.1063/1.3606220
Bias voltage dependence of tunnel magnetoimpedance in AlO x -based magnetic tunnel junctions
J. Appl. Phys. 109, 07C718 (2011); 10.1063/1.3556755
Chemiluminescence of AlO
J. Chem. Phys. 63, 1963 (1975); 10.1063/1.431530
Laser fluorescence study of AlO formed in the reaction Al + O2: Product state distribution, dissociation
energy, and radiative lifetime
J. Chem. Phys. 62, 1824 (1975); 10.1063/1.430710
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:
132.174.255.116 On: Thu, 27 Nov 2014 01:55:23

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:
32.174.255.116 On: Thu, 27 Nov 2014 01:55:23
1

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:
32.174.255.116 On: Thu, 27 Nov 2014 01:55:23
1

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:
32.174.255.116 On: Thu, 27 Nov 2014 01:55:23
1

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:
32.174.255.116 On: Thu, 27 Nov 2014 01:55:23
1

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:
32.174.255.116 On: Thu, 27 Nov 2014 01:55:23
1

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:
32.174.255.116 On: Thu, 27 Nov 2014 01:55:23
1

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:
32.174.255.116 On: Thu, 27 Nov 2014 01:55:23
1

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:
32.174.255.116 On: Thu, 27 Nov 2014 01:55:23
1

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:
32.174.255.116 On: Thu, 27 Nov 2014 01:55:23
1