| Autor: |
Fu, Zhenwen, Massick, Steven, Kaup, John G., Benoist d’Azy, Odile, Breckenridge, W. H. |
| Předmět: |
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| Zdroj: |
Journal of Chemical Physics; 8/1/1992, Vol. 97 Issue 3, p1683, 9p, 6 Charts, 7 Graphs |
| Abstrakt: |
The AlKr van der Waals complex was characterized by laser-induced fluorescence spectroscopy in a supersonic free jet. Rotationally resolved spectra were recorded for eight bands of the AlKr(B 2Σ+←X 2Π1/2) transition and for seven bands of the AlKr(H 2Σ+←X 2Π1/2) transition. Rydberg–Klein–Rees potential-energy curves were determined for the B 2Σ+ and H 2Σ+ states, using vibrational and rotational spectroscopic constants derived from the spectra. The interaction between the X 2Π1/2 ground state and the low-lying repulsive A 2Σ+ state was characterized by analysis of the Λ doubling in the ground state. Equilibrium bond lengths were obtained for the X, B, and H states, and dissociation energies for the B and H states. The fact that the more strongly bound H 2Σ+ state has a larger re value than the B 2Σ+ state was rationalized by postulating an avoided potential curve crossing between the H 2Σ+ state and a repulsive valence 2Σ+ state correlating with Al(3s23d)+Kr. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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