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Vibrational branching ratios in photoionization of CO and N2

Rathbone, G. J. and Rao, R. M. and Poliakoff, E. D. and Wang, Kwanghsi and McKoy, V. (2004) Vibrational branching ratios in photoionization of CO and N2. Journal of Chemical Physics, 120 (2). pp. 778-780. ISSN 0021-9606. doi:10.1063/1.1631818.

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We report results of experimental and theoretical studies of the vibrational branching ratios for CO 4sigma(-1) photoionization from 20 to 185 eV. Comparison with results for the 2sigma(u)(-1) channel of the isoelectronic N-2 molecule shows the branching ratios for these two systems to be qualitatively different due to the underlying scattering dynamics: CO has a shape resonance at low energy but lacks a Cooper minimum at higher energies whereas the situation is reversed for N-2.

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Additional Information:Copyright © 2004 American Institute of Physics. Received 18 August 2003; accepted 17 October 2003. E.D.P. acknowledges support by the Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy, and the National Science Foundation (CHE-9616908). We thank the CAMD staff for their assistance. The work at Caltech was also supported in part by the National Science Foundation.
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Department of Energy (DOE)UNSPECIFIED
Subject Keywords:photoionisation; vibrational states; carbon compounds; nitrogen; resonant states
Issue or Number:2
Record Number:CaltechAUTHORS:RATjcp04
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:2984
Deposited By: Tony Diaz
Deposited On:10 May 2006
Last Modified:08 Nov 2021 19:52

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