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Exploring Low Energy Molecular Ion Reactions With Merged Beams.
- Source :
-
AIP Conference Proceedings . 6/1/2011, Vol. 1336 Issue 1, p101-105. 5p. 1 Chart, 5 Graphs. - Publication Year :
- 2011
-
Abstract
- Charge transfer (CT) in molecular ion-neutral interactions can proceed through dynamically coupled electronic, vibrational, and rotational degrees of freedom. Using the upgraded Oak Ridge National Laboratory ion-atom merged-beams apparatus, absolute direct charge transfer is explored from keV/u collision energies where the collision is considered 'ro-vibrationally frozen' to sub-eV/u collision energies where collision times are long enough to sample vibrational and rotational modes. Our first molecular ion measurement with the merged-beams apparatus has been performed for D2++H and is used to benchmark high energy sudden approximation theory and vibrational specific adiabatic theory for the (H2-H)+ complex. CT measurements have also been performed for D3++H from 2 eV/u to 2 keV/u and CO++D from 20 eV/u to 2000 eV/u. With straightforward improvements to the apparatus, we plan to extend our measurements to key 'destructive' rate coefficients for H2+ and CH+ with H at temperatures relevant to the interstellar medium. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0094243X
- Volume :
- 1336
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- AIP Conference Proceedings
- Publication Type :
- Conference
- Accession number :
- 61237921
- Full Text :
- https://doi.org/10.1063/1.3586066