Mode-dependent vibrational autoionization of NO2
| Autor: | Edward R. Grant, S. T. Pratt, Patrice Bell, F. Aguirre |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Chemistry
General Physics and Astronomy Molecular physics Vibration symbols.namesake Matrix (mathematics) Autoionization X-ray photoelectron spectroscopy Physics::Atomic and Molecular Clusters Rydberg formula symbols Physics::Atomic Physics Fermi resonance Physics::Chemical Physics Physical and Theoretical Chemistry Atomic physics Quantum Excitation |
| Zdroj: | The Journal of Chemical Physics. 119:10146-10157 |
| ISSN: | 1089-7690 0021-9606 |
| DOI: | 10.1063/1.1618218 |
| Popis: | Triple-resonance excitation and high-resolution photoelectron spectroscopy were combined to study the mode dependence of vibrational autoionization in Rydberg states of NO2. Photoselection isolates vibrational autoionization via the symmetric stretching vibration, ν1, and the bending vibration, ν2. The previously characterized Fermi resonance between one quantum of ν1 and two quanta of ν2 [H. Matsui et al., J. Mol. Spectrosc. 175, 203 (1996)] allows the comparison of the vibrational autoionization matrix elements for these two modes. The squared matrix element for vibrational autoionization via the symmetric stretch is found to be approximately 35 times greater than that for the bend, which is also consistent with previous results. The results are discussed in terms of existing theoretical models for the autoionization process. |
| Databáze: | OpenAIRE |
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