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ZEKE-PFI spectroscopy of 1:1 complexes of sodium with water and ammonia

Rodham, David A. and Blake, Geoffrey A. (1997) ZEKE-PFI spectroscopy of 1:1 complexes of sodium with water and ammonia. Chemical Physics Letters, 264 (5). pp. 522-530. ISSN 0009-2614.

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ZEKE-PFI (zero kinetic energy pulsed field ionization) photoelectron spectra of the Na(H_2O), Na(D_2O), Na(NH_3), and Na(ND_3) complexes are reported. Spectra of all four complexes were obtained by single-photon ionization, and, for the Na(NH_3) and Na(ND_3) complexes, by two-color (1 + 1′) photoionization as well, with the Ã^2E state serving as the intermediate resonance. Improved values for the ionization energies (IE) and intermolecular vibrational frequencies of the complexes were determined. The single-photon ZEKE-PFI spectra show transitions only between states of the same vibrational symmetry, in accord with the selection rule for allowed electronic transitions. Some of the two-color ZEKE-PFI spectra, however, show strong transitions between states of different vibrational symmetry which we attribute to vibronic coupling in the intermediate state.

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Additional Information:© 1997 Published by Elsevier Science B.V. Received 11 June 1996; in final form 7 November 1996. The authors gratefuJly acknowledge support from NASA (grants NAGW-2813 and -1955) and the National Science Foundation (CHE-9415488) during the course of this work, as well as initial instrumentation funding provided by the David and Lucille Packard Foundation.
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Official Citation:David A. Rodham, Geoffrey A. Blake, ZEKE-PFI spectroscopy of 1:1 complexes of sodium with water and ammonia, Chemical Physics Letters, Volume 264, Issue 5, 17 January 1997, Pages 522-530, ISSN 0009-2614, 10.1016/S0009-2614(96)01369-3. (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:34027
Deposited By: Ruth Sustaita
Deposited On:12 Sep 2012 19:47
Last Modified:26 Dec 2012 16:09

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