Published June 30, 1994
| public
Journal Article
Guided ion beam studies of reactions of alkaline earth ions with O_2
- Creators
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Dalleska, N. F.
- Armentrout, P. B.
Abstract
The endothermic reactions of Mg^+ and Sr^+ with O_2 are studied in a guided ion beam mass spectrometer. Analysis of the reaction thresholds are used to obtain 0 K bond dissociation energies of MgO^+ (2.50 ± 0.10 eV) and SrO^+ (3.47 ± 0.06 eV), which are compared with other literature values. Analysis of these reaction cross sections and those previously published for the reaction of Ca^+ with O_2 [E.R. Fisher, J.L. Elkind, D.E. Clemmer, R. Georgiadis, S.K. Loh, N. Aristov, L.S. Sunderlin, and P.B. Armentrout, J. Chem. Phys., 93 (1990) 2676] suggests that there are both thermodynamic and impulsive reaction pathways. The latter play an increasingly important role in the reaction dynamics as the mass of the alkaline earth ion increases.
Additional Information
© 1994 Elsevier. (Received 25 January 1994; accepted 23 March 1994) We thank E. Murad for helpful comments, C. W. Bauschlicher for communicating results before publication, and a referee for his comments. This work is supported by the National Science Foundation, grant number CHE-9221241.Additional details
- Alternative title
- Guided ion beam studies of reactions of alkaline earth ions with O2
- Eprint ID
- 58419
- Resolver ID
- CaltechAUTHORS:20150622-144457568
- CHE-9221241
- NSF
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2015-06-22Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field