| Autor: |
Zhu, H., Qu, Z.-W., Grebenshchikov, S. Yu., Schinke, R., Malicet, J., Brion, J., Daumont, D. |
| Předmět: |
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| Zdroj: |
Journal of Chemical Physics; 1/8/2005, Vol. 122 Issue 2, p024310, 8p, 2 Charts, 4 Graphs |
| Abstrakt: |
The “hot bands” of the Huggins band of ozone are assigned, in both the 218 K and the 295 K spectrum. The assignment is based on intensities calculated with three-dimensional vibrational wave functions for the electronic ground state (X) and the excited state (B). The hot-band structures in the 218 K spectrum all can be assigned to transitions starting from vibrational states with one quantum of stretching excitation in the ground electronic state. The 295 K spectrum shows new structures, which are due to transitions originating from vibrational states in the X state with two quanta of excitation of the stretching modes—despite very small Boltzmann factors. All structures in the low-energy range of the 295 K spectrum, even the very weak ones, thus can be uniquely interpreted. The significance of hot bands results from the strong increase of Franck-Condon factors with excitation of the stretching modes in both the lower and/or the upper electronic states, whose equilibrium bond lengths differ significantly.© 2005 American Institute of Physics. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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