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Non-Franck–Condon effects in photoionization of the 3 ^3Π Rydberg state of NH

Wang, Kwanghsi and Stephens, J. A. and McKoy, V. (1990) Non-Franck–Condon effects in photoionization of the 3 ^3Π Rydberg state of NH. Journal of Chemical Physics, 93 (11). pp. 7874-7882. ISSN 0021-9606. doi:10.1063/1.459369.

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Strong non‐Franck–Condon behavior is predicted to occur in the vibrationally resolved photoionization spectra of NH for (3+1) resonance enhanced multiphoton ionization processes via the 3 ^3Π Rydberg state. The non‐Franck–Condon effects are interpreted on the basis of rapid orbital evolution, Cooper minima, and internuclear distance dependence of the dipole transition moment and cross sections. A Cooper minimum occurs in the 5σ→kπ channel at small internuclear distances, where NH resembles its united atom, oxygen. The iterative Schwinger variational method and multiplet‐specific ion potentials are employed in the calculation of the photoelectron continuum wave functions. Cross sections and asymmetry parameters for photoionization of the NH ground state leading to the X  ^2Π, a  ^4Σ^−, and A  ^2Σ^− ions are also reported.

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Alternate Title:Non-Franck–Condon effects in photoionization of the 3 3Π Rydberg state of NH
Additional Information:© 1990 American Institute of Physics. (Received 16 July 1990; accepted 29 August 1990) This work was supported by grants from the National Science Foundation (CHE-8521391), Air Force Office of Scientific Research (Contract No. 87-(039), and the Office of Health and Environmental Research of the U. S. Department of Energy (DE-FG03-87ER60513). We also acknowledge use of resources of the San Diego SuperComputer Center, which is supported by the National Science Foundation, and resources of the Jet Propulsion Laboratory/Caltech CrayX-MP.
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Air Force Office of Scientific Research (AFOSR)87-0039
Department of Energy (DOE)DE-FG03-87ER60513
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Caltech Arthur Amos Noyes Laboratory of Chemical Physics8173
Issue or Number:11
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Official Citation:Non‐Franck–Condon effects in photoionization of the 3 3Π Rydberg state of NH Wang, Kwanghsi and Stephens, J. A. and McKoy, V., The Journal of Chemical Physics, 93, 7874-7882 (1990), DOI:
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ID Code:62020
Deposited By: George Porter
Deposited On:10 Nov 2015 21:06
Last Modified:10 Nov 2021 22:56

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