| Autor: |
Verbraak, H., Snels, M., Botschwina, P., Linnartz, H. |
| Předmět: |
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| Zdroj: |
Journal of Chemical Physics; 6/14/2006, Vol. 124 Issue 22, p224315, 6p, 4 Charts, 4 Graphs |
| Abstrakt: |
Two rotationally fully resolved vibrational bands have been assigned unambiguously to the linear deuteron bound Ar...DN2+ complex by using ground state combination differences. The ionic complex is formed in a supersonic planar plasma expansion optimized and controlled by a mass spectrometer and is detected in direct absorption using tunable diode lasers and applying production modulation spectroscopy. The band origins are located at 2436.272 cm-1 and at 2435.932 cm-1 and correspond to the ν1 band (NN stretch) and to the ν2+4νs combination band (DN and intermolecular stretch), respectively. The two bands overlap strongly and the large intensity of the combination band is explained in terms of a Fermi interaction. This interaction perturbs the observed transitions, particularly for low J values. Least-squares fitting yields values for the Fermi interaction parameters of F0=0.332 cm-1 and FJ=-0.001 46 cm-1 and results in accurate rotational constants. These are discussed both from an experimental and a theoretical point of view. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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