Analysis of the center of mass-, rotational- and intramolecular diffusive motions in a monolayer film of intermediate-length alkane molecules adsorbed on a solid surface

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Analysis of the center of mass-, rotational- and intramolecular diffusive motions in a monolayer film of intermediate-length alkane molecules adsorbed on a solid surface

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/8754

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Title: Analysis of the center of mass-, rotational- and intramolecular diffusive motions in a monolayer film of intermediate-length alkane molecules adsorbed on a solid surface
Author: Hansen, Flemming Y.; Taub, Haskell
Keywords: molecular dynamics method
Date: 2004-04-30
Publisher: American Institute of Physics
Citation: AIP Conf. Proc. -- April 30, 2004 -- Volume 708, pp. 233-236
Abstract: The intramolecular diffusive motions associated with the creation and annihilation of gauche defects in intermediate-length alkane molecules adsorbed on a solid surface are relatively slow and on a time scale of nanoseconds. This has been shown by molecular dynamics (MD) simulations and by high-energy-resolution quasielastic neutron scattering (QNS) on monolayers of tetracosane (n-C24H50) adsorbed on graphite basal-plane surfaces. QNS with the high energy resolution makes it now possible to probe diffusive motions on the same time scale as in nuclear magnetic resonance (NMR) experiments and, in addition, to obtain information about length scales and character of motions through the wavevector dependence of the QNS.
URI: http://hdl.handle.net/10355/8754
ISSN: 0094-243X

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