Intramolecular Diffusive Motion in Alkane Monolayers Studied by High-Resolution Quasielastic Neutron Scattering and Molecular Dynamics Simulations

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Intramolecular Diffusive Motion in Alkane Monolayers Studied by High-Resolution Quasielastic Neutron Scattering and Molecular Dynamics Simulations

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/8762

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Title: Intramolecular Diffusive Motion in Alkane Monolayers Studied by High-Resolution Quasielastic Neutron Scattering and Molecular Dynamics Simulations
Author: Hansen, Flemming Y.; Criswell, Leah, 1971-; Fuhrmann, D.; Herwig, K. W.; Diama, Armand, 1965-; Dimeo, R. M.; Neumann, Dan A.; Volkmann, Ulrich G.; Taub, Haskell
Date: 2004-01-29
Publisher: American Physical Society
Citation: Phys. Rev. Lett. 92, 046103 (2004)
Abstract: Molecular dynamics simulations of a tetracosane (n-C24H50) monolayer adsorbed on a graphite basal-plane surface show that there are diffusive motions associated with the creation and annihilation of gauche defects occurring on a time scale of ∼0.1-4  ns. We present evidence that these relatively slow motions are observable by high-energy-resolution quasielastic neutron scattering (QNS) thus demonstrating QNS as a technique, complementary to nuclear magnetic resonance, for studying conformational dynamics on a nanosecond time scale in molecular monolayers.
URI: http://hdl.handle.net/10355/8762
ISSN: 0031-9007

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