Renner-Teller interactions in the vibrational autoionization of polyatomic molecules. Jungen, C. & Pratt, S T The Journal of chemical physics, 129(16):164310, October, 2008. ![Renner-Teller interactions in the vibrational autoionization of polyatomic molecules. [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Vibrational autoionization induced by the Renner-Teller interaction in linear polyatomic molecules is considered in the context of the three-state electrostatic model developed by Gauyacq and Jungen [Mol. Phys. 41, 383 (1980)]. For small interactions, simple formulas are derived for the quantum defect matrix elements and the autoionization rates in terms of the more common Renner-Teller parameters derived from spectroscopic analyses of low-lying Rydberg states. These formulas should provide guidance for empirical fitting of quantum defect parameters to spectra of high Rydberg states. Consideration of typical values of the Renner-Teller parameters also allows the estimation of vibrational autoionization rates induced by these interactions. These estimates support the validity of the Deltav=-1 propensity rule for vibrational autoionization. Constraints on the vibrational autoionization rates for the symmetric stretching vibration are also discussed. In the following paper, electron capture by polyatomic molecular ions into vibrationally autoionizing Rydberg states is considered from the same perspective, and a simple formula is derived to allow the estimation of the effect of this process on dissociative recombination cross sections.
@article{Jungen2008,
title = {Renner-{Teller} interactions in the vibrational autoionization of polyatomic molecules.},
volume = {129},
issn = {1089-7690},
url = {http://www.ncbi.nlm.nih.gov/pubmed/19045269},
doi = {10.1063/1.2999553},
abstract = {Vibrational autoionization induced by the Renner-Teller interaction in linear polyatomic molecules is considered in the context of the three-state electrostatic model developed by Gauyacq and Jungen [Mol. Phys. 41, 383 (1980)]. For small interactions, simple formulas are derived for the quantum defect matrix elements and the autoionization rates in terms of the more common Renner-Teller parameters derived from spectroscopic analyses of low-lying Rydberg states. These formulas should provide guidance for empirical fitting of quantum defect parameters to spectra of high Rydberg states. Consideration of typical values of the Renner-Teller parameters also allows the estimation of vibrational autoionization rates induced by these interactions. These estimates support the validity of the Deltav=-1 propensity rule for vibrational autoionization. Constraints on the vibrational autoionization rates for the symmetric stretching vibration are also discussed. In the following paper, electron capture by polyatomic molecular ions into vibrationally autoionizing Rydberg states is considered from the same perspective, and a simple formula is derived to allow the estimation of the effect of this process on dissociative recombination cross sections.},
number = {16},
urldate = {2012-07-17},
journal = {The Journal of chemical physics},
author = {Jungen, Ch and Pratt, S T},
month = oct,
year = {2008},
pmid = {19045269},
keywords = {\#nosource},
pages = {164310},
}
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