Predicted predissociation linewidths in the Schumann–Runge bands of O2 compared with recent high resolution measurements
Tong, G. S. M. ; Cheung, A. S-C.
College Park, Md. : American Institute of Physics (AIP)
Published 2001
College Park, Md. : American Institute of Physics (AIP)
Published 2001
| ISSN: |
1089-7690
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| Source: |
AIP Digital Archive
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| Topics: |
Physics
Chemistry and Pharmacology
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| Notes: |
We derive and use new parameters to quantify the semiempirical expressions of Julienne and Krauss [J. Mol. Spectrosc. 56, 270 (1975)] for the 5Πu, 3Σu+, 3Πu, and 1Πu potentials that predissociate the rovibrational levels of the B 3Σu− state of O2. Using the new parameters in the model of Julienne and Krauss we evaluate fine-structure predissociation linewidths for the Schumann–Runge bands that terminate on the v=13,14 rovibrational levels of the B 3Σu− state. We compare these linewidths and those calculated with several existing sets of parameters with the measurements of Dooley et al. [J. Chem. Phys. 109, 3856 (1998)]. We also show the deperturbing effect of the level shifts, calculated with the new parameters, on the energies of the rotationless v=0–17 vibrational levels of the B 3Σu− state. © 2001 American Institute of Physics.
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| Type of Medium: |
Electronic Resource
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| URL: |