A stochastic, local mode study of neon-liquid surface collision dynamics

Daniel Miles Packwood, Leon F. Phillips

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    Equations of motion for a fast, light rare gas atom passing over a liquid surface are derived and used to infer the dynamics of neon collisions with squalane and perfluorinated polyether surfaces from experimental data. The equations incorporate the local mode model of a liquid surface via a stochastic process and explicitly account for impulsive collisional energy loss to the surface. The equations predict angular distributions for scattering of neon that are in good quantitative agreement with experimental data. Our key dynamical conclusions are that experimental angular distributions derive mainly from local mode surface topography rather than from structural features of individual surface molecules, and that the available data for these systems can be accounted for almost exclusively by single collisions between neon atoms and the liquid surface.

    Original languageEnglish
    Pages (from-to)762-778
    Number of pages17
    JournalPhysical Chemistry Chemical Physics
    Volume13
    Issue number2
    DOIs
    Publication statusPublished - 2011 Jan 14

    ASJC Scopus subject areas

    • Physics and Astronomy(all)
    • Physical and Theoretical Chemistry

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