A multichannel harpoon model for reactive quenching of Xe 5p/sup 5/6p by Cl/sub 2/

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A harpoon reaction model employing multiple crossings based on the formalism of Bauer et al and Gislason and Sachs is developed to explain the large cross sections (sigma approx.400 A/sup 2/) measured for the reaction Xe 5p/sup 5/6p + Cl/sub 2/. The model calculates the Landau-Zener transition probability for each intermediate ionic crossing with the covalent surface. The transition matrix elements are represented as a product of the electronic interaction (modeled by the empirical result of Olson et al) and a Frank-Condon factor for the Cl/sub 2/ ..-->.. Cl/sub 2//sup -/ transition. The model predicts near unit probability for a ... continued below

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Pages: 20

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Bruce, M.R.; Layne, W.B. & Keto, J.W. January 1, 1987.

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Description

A harpoon reaction model employing multiple crossings based on the formalism of Bauer et al and Gislason and Sachs is developed to explain the large cross sections (sigma approx.400 A/sup 2/) measured for the reaction Xe 5p/sup 5/6p + Cl/sub 2/. The model calculates the Landau-Zener transition probability for each intermediate ionic crossing with the covalent surface. The transition matrix elements are represented as a product of the electronic interaction (modeled by the empirical result of Olson et al) and a Frank-Condon factor for the Cl/sub 2/ ..-->.. Cl/sub 2//sup -/ transition. The model predicts near unit probability for a transition to the ionic surface for impact parameters less than 20 Bohr. Once transfer occurs, the pair is captured by dissociation of Cl/sub 2//sup -/ to form XeCl. The large temperature dependence observed qualitatively in the experiments is explained by the increased cross section for vibrationally excited Cl/sub 2/. A simple model for orbiting collisions is used to estimate the effect of termolecular collisions.

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Pages: 20

Notes

NTIS, PC A03/MF A01; 1.

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  • 18. American Physical Society meeting on atomic molecular and optical physics, Boston, MA, USA, 1 May 1987

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  • Other: DE88004263
  • Report No.: CONF-8705246-2
  • Grant Number: FG05-84ER13191
  • Office of Scientific & Technical Information Report Number: 5512983
  • Archival Resource Key: ark:/67531/metadc1092651

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 1987

Added to The UNT Digital Library

  • Feb. 10, 2018, 10:06 p.m.

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  • April 9, 2018, 11:25 a.m.

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Bruce, M.R.; Layne, W.B. & Keto, J.W. A multichannel harpoon model for reactive quenching of Xe 5p/sup 5/6p by Cl/sub 2/, article, January 1, 1987; United States. (digital.library.unt.edu/ark:/67531/metadc1092651/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.