Published February 20, 1989
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Journal Article
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Non-Franck-Condon Effects Induced by Orbital Evolution and Cooper Minima in Excited-State Photoionization of OH
- Creators
- Stephens, J. A.
- McKoy, V.
Chicago
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Abstract
We show that strong non-Franck-Condon effects can arise from photoionization of molecular Rydberg orbitals which evolve rapidly with internuclear distance and display Cooper minima in their photoelectron spectrum. The non-Franck-Condon mechanism should be most pronounced in excited-state photoionization of diatomic hydrides. The mechanism is illustrated with specific ab initio predictions of ion vibrational distributions for a proposed (3 + 1) one-color or (2 + 1) two-color resonant multiphoton ionization measurement of OH via the D^2Σ-(1π^25σ) state
Additional Information
©1989 The American Physical Society Received 22 August 1988 The authors acknowledge helpful discussions with S.N. Dixit at an early stage of this work. This work was supported by the National Science Foundation (Grant No. CHE-8521391), Air Force Office of Scientific Research (Contract No. 87-0039), and the Office of Health and Environmental Research of the U.S. Department of Energy (Grant No. DE-FG03-87ER60513). We also acknowledge use of the resources of the San Diego Supercomputer Center, which is supported by the National Science Foundation.Files
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