Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 2853-2856 |
| Seitenumfang | 4 |
| Fachzeitschrift | Journal of Chemical Physics |
| Jahrgang | 111 |
| Ausgabenummer | 7 |
| Publikationsstatus | Veröffentlicht - 15 Aug. 1999 |
Abstract
We study the dynamics in optical collisions of Na with Ne, Ar, Kr, and Xe in a differential scattering experiment. We report the observation of nonadiabatic transitions in the excited collisional quasimolecule based on measurements of the population ratio of the Na(3p)2P1/2 and 2P3/2 fine-structure levels. Comparison with theoretical results shows a generally very good agreement over the range of collision energies (0.01-0.3 eV) scanned in our experiment, using the best available potentials. For the heavier rare-gas systems a strong influence of the BΣ-AΠ crossing on the population ratios is observed. We further extract a universal function for the nonadiabatic transition probability for these systems. In the thermal energy range, our results are in good qualitative agreement with data from gas phase optical collision experiments.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Allgemeine Physik und Astronomie
- Chemie (insg.)
- Physikalische und Theoretische Chemie
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in: Journal of Chemical Physics, Jahrgang 111, Nr. 7, 15.08.1999, S. 2853-2856.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Direct observation of nonadiabatic transitions in Na+rare-gas differential optical collisions
AU - Grosser, J.
AU - Hoffmann, O.
AU - Schulze Wischeler, F.
AU - Rebentrost, F.
PY - 1999/8/15
Y1 - 1999/8/15
N2 - We study the dynamics in optical collisions of Na with Ne, Ar, Kr, and Xe in a differential scattering experiment. We report the observation of nonadiabatic transitions in the excited collisional quasimolecule based on measurements of the population ratio of the Na(3p)2P1/2 and 2P3/2 fine-structure levels. Comparison with theoretical results shows a generally very good agreement over the range of collision energies (0.01-0.3 eV) scanned in our experiment, using the best available potentials. For the heavier rare-gas systems a strong influence of the BΣ-AΠ crossing on the population ratios is observed. We further extract a universal function for the nonadiabatic transition probability for these systems. In the thermal energy range, our results are in good qualitative agreement with data from gas phase optical collision experiments.
AB - We study the dynamics in optical collisions of Na with Ne, Ar, Kr, and Xe in a differential scattering experiment. We report the observation of nonadiabatic transitions in the excited collisional quasimolecule based on measurements of the population ratio of the Na(3p)2P1/2 and 2P3/2 fine-structure levels. Comparison with theoretical results shows a generally very good agreement over the range of collision energies (0.01-0.3 eV) scanned in our experiment, using the best available potentials. For the heavier rare-gas systems a strong influence of the BΣ-AΠ crossing on the population ratios is observed. We further extract a universal function for the nonadiabatic transition probability for these systems. In the thermal energy range, our results are in good qualitative agreement with data from gas phase optical collision experiments.
UR - http://www.scopus.com/inward/record.url?scp=0000186497&partnerID=8YFLogxK
U2 - 10.1063/1.479566
DO - 10.1063/1.479566
M3 - Article
AN - SCOPUS:0000186497
VL - 111
SP - 2853
EP - 2856
JO - Journal of Chemical Physics
JF - Journal of Chemical Physics
SN - 0021-9606
IS - 7
ER -