Browsing by Author "Ferguson, M. K."

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    Influence of buried hydrogen-bonding groups within monolayer films on gas-surface energy exchange and accommodation
    Ferguson, M. K.; Lohr, J. R.; Day, Brian Scott; Morris, J. R. (American Physical Society, 2004-02-20)
    Self-assembled monolayers (SAMs) of carbonyl-containing alkanethiols on gold are employed to explore the influence of hydrogen-bonding interactions on gas-surface energy exchange and accommodation. H-bonding, COOH-terminated SAMs are found to produce more impulsive scattering and less thermal accommodation than non-H-bonding, COOCH3-terminated monolayers. For carbamate-functionalized SAMs of the form Au/S(CH2)(16)OCONH(CH2)(n-1)CH3, impulsive scattering decreases and accommodation increases as the H-bonding group is positioned farther below the terminal CH3.