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Energy Redistribution in Diatomic Molecules on Surfaces

  • Conference paper
Dynamics on Surfaces

Part of the book series: The Jerusalem Symposia on Quantum Chemistry and Biochemistry ((JSQC,volume 17))

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Abstract

Translational and internal degrees of freedom of a scattered beam of NO molecules from a Pt (111) single crystal surface were measured as a function of scattering angle and crystal temperature in the range 450–1250K. None of the three degrees of freedom were found to fully accommodate to the crystal temperature, the translational degree being the most accommodated and the rotational degree of freedom the least. A precursor state model is suggested to account for the incomplete accommodation of translational and vibrational degrees of freedom as a function of crystal temperature and incident beam energy. The vibrational accommodation is further discussed in terms of a competition between desorption and vibrational excitation processes, thus providing valuable information on the interaction between vibrationally excited molecules and surfaces. Energy transfer into rotational degrees of freedom is qualitatively discussed.

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Author information

Author notes

  1. M. Asscher

    Present address: Department of Physical Chemistry, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel

Authors and Affiliations

  1. Materials and Molecular Research Division, Lawrence Berkeley Laboratory and Department of Chemistry, University of California, Berkeley, CA, 94720, USA

    M. Asscher & G. A. Somorjai

Authors
  1. M. Asscher
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  2. G. A. Somorjai
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Editor information

Editors and Affiliations

  1. Fondation Edmond de Rothschild, Institut de Biologie Physico-Chimique, Paris, France

    Bernard Pullman

  2. Department of Chemistry, University of Tel Aviv, Israel

    Joshua Jortner  & Abraham Nitzan  & 

  3. Department of Physical Chemistry, The Hebrew University, Jerusalem, Israel

    Benjamin Gerber

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© 1984 D. Reidel Publishing Company

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Asscher, M., Somorjai, G.A. (1984). Energy Redistribution in Diatomic Molecules on Surfaces. In: Pullman, B., Jortner, J., Nitzan, A., Gerber, B. (eds) Dynamics on Surfaces. The Jerusalem Symposia on Quantum Chemistry and Biochemistry, vol 17. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-5237-9_10

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  • DOI: https://doi.org/10.1007/978-94-009-5237-9_10

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-8815-2

  • Online ISBN: 978-94-009-5237-9

  • eBook Packages: Springer Book Archive

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