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Collision-Energy Dependence of the Ion–Molecule Charge-Exchange Reaction Ar+ + CO → Ar + CO+
- Source :
- The Journal of Physical Chemistry A. 124:3358-3363
- Publication Year :
- 2020
- Publisher :
- American Chemical Society (ACS), 2020.
-
Abstract
- Ion-molecule charge-exchange reactions Ar+ + CO → Ar + CO+ at the center-of-mass collision energies of 4.40, 6.40, and 8.39 eV are investigated using ion velocity map imaging technique. Although multiple electronically excited states of CO+ are accessed, the population of CO+ at the A2Π state is predominant in the present collision-energy range. In contrast to our previous study for NO, but similar to the case of O2, the forward-scattered CO+ yields show a broader angular distribution at the higher collision energy. Typically, the Franck-Condon-region charge transfer, energy resonant charge transfer, and intimate collision are three different mechanisms in which the intimate collision experiences an intermediate complex, and this mechanism usually plays an essential role in the thermal-energy reactions. However, the present observations indicate that this mechanism, concerning the intermediate (Ar-CO)+, is still of utmost importance in a relatively high collision-energy range.
- Subjects :
- Imagination
Range (particle radiation)
education.field_of_study
010304 chemical physics
Chemistry
media_common.quotation_subject
Population
Charge (physics)
010402 general chemistry
Collision
01 natural sciences
0104 chemical sciences
Ion
Excited state
0103 physical sciences
Molecule
Physical and Theoretical Chemistry
Atomic physics
education
media_common
Subjects
Details
- ISSN :
- 15205215 and 10895639
- Volume :
- 124
- Database :
- OpenAIRE
- Journal :
- The Journal of Physical Chemistry A
- Accession number :
- edsair.doi...........1c9ecb9d0d64aefa0b99715ab70be44e