Absolute state-selected total cross sections for the O(+)(4S) + CO2 reactions

Details Absolute state-selected total cross sections for the O(+)(4S) + CO2 reactions Absolute state-selected total cross sections for the O(+)(4S) + CO2 reactions

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jgr....9621403f&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 96, Dec. 1, 1991, p. 21,403-21,405. Research supported by Petroleum Resea

Physics

6

Carbon Dioxide, Gas-Ion Interactions, Oxygen Atoms, Photodissociation, Photoionization, Quantum Chemistry, Carbon Monoxide, Extreme Ultraviolet Radiation, Planetary Atmospheres

Scientific paper

Results are presented on measurements of absolute state-selected total cross sections for O2(+), CO2(+), CO(+), and C(+) produced in the reaction between O(+)(4S) and CO2, which were conducted in the center-of-mass collision energy (Ecm) range of 0.2-150 eV. It was found that, with increasing collisional energy, the cross section of O2(+) dropped off rapidly and became essentially zero at Ecm above 3 eV. The dependence of O2(+) cross section on the Ecm is consistent with a collision complex mechanism for the reaction between O(+)(4S) and CO2 yielding CO2(+) + O. The values for O2(+) obtained in this experiment were significantly higher than those reported by Rutherford and Vroom (1976).

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