Selected-ion flow tube temperature-dependent measurements for the reactions of O{sub 2}{sup +} with N atoms and N{sub 2}{sup +} with O atoms
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131 (United States)
The temperature variation of rate constants has been measured for the gas phase reactions of the oxycation O{sub 2}{sup +} with N atoms and of N{sub 2}{sup +} with O atoms from 120 to 400 K using a variable temperature-selected ion flow tube. Measured room temperature rate constants, 0.75 × 10{sup −10} cm{sup 3} s{sup −1} (±30%) for O{sub 2}{sup +} with N and 1.4 × 10{sup −10} cm{sup 3} s{sup −1} (±30%) for N{sub 2}{sup +} with O, are in agreement with previously reported values. A temperature dependence of T{sup −0.7(±0.3)} is observed for the O{sub 2}{sup +} + N reaction; however, the N{sub 2}{sup +} + O reaction is found to be independent of temperature. Calculations at varying levels of theory were used in tandem with experiments to evaluate likely pathways in potential energy surfaces for the reactions of concern.
- OSTI ID:
- 22415674
- Journal Information:
- Journal of Chemical Physics, Vol. 142, Issue 15; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
- Country of Publication:
- United States
- Language:
- English
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