Rotationally resolved threshold photoelectron spectroscopy of H_2O and H_2S

Creators: Wang, Kwanghsi; Lee, M.-T.; McKoy, V.; Wiedmann, Ralph T.; White, Michael G.

Abstract

We report both measured and calculated rotationally resolved threshold photoelectron spectra for single-photon coherent VUV ionization of the X ^1A_1 ground state of jet-cooled H_2O and H_2S. Agreement between the calculated and measured spectra is very encouraging. Both the H_2O and H_2S spectra show type a transitions which arise from odd angular momentum components of the photoelectron matrix element and are quite molecular in origin. These type a transitions, however, are much weaker in H_2S due to its more atomiclike character.

Additional Information

© 1994 Elsevier. Received 30 November 1993; in final form 11 January 1994. Work at the California Institute of Technology was supported by grants from the National Science Foundation, Air Force Office of Scientific Research, and the Office of Health and Environmental Research of the US Department of Energy. We also acknowledge use of resources of the Jet Propulsion Laboratory/Caltech CRAY Y-MP2E/116 Supercomputer. One of us (MTL) thanks the Conselho National de Desenvolvimento Científico e Tecnológico (CNPq, Brasil) for financial support. Work at Brookhaven National Laboratory was supported under Contract No. DE-AC02-76CH00016 with the US Department of Energy and by its Division of Chemical Sciences, Office of Basic Energy Sciences.

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Resource type: Journal Article
Publisher: Elsevier
Published in: Chemical Physics Letters, 219(5-6), 397-404, ISSN: 0009-2614.