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Proceedings Paper

Vibrational dynamics of fullerene molecules adsorbed on metal surfaces: a synchrotron infrared study
Author(s): Petra Rudolf; Rasmita Raval; Paul Dumas; Gwyn P. Williams
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Paper Abstract

Infrared spectroscopy of chemisorbed C60 on Ag(111), Au(110) and Cu(100) reveals that a non-IR active mode becomes active upon adsorption and that its frequency shifts proportionally with the charge transferred from the metal to the molecule by about 5 cm-1 per electron. The temperature dependence of the frequency and the width of this IR feature has also been followed for C60/Cu(100) and was found to agree well with a weak anharmonic coupling (dephasing) to a low frequency mode which we suggest to be the frustrated translational mode of the adsorbed molecules.

Paper Details

Date Published: 25 October 1999
PDF: 10 pages
Proc. SPIE 3775, Accelerator-based Sources of Infrared and Spectroscopic Applications, (25 October 1999); doi: 10.1117/12.366643
Show Author Affiliations
Petra Rudolf, Univ. Notre-Dame de la Paix (Belgium)
Rasmita Raval, Univ. of Liverpool (United Kingdom)
Paul Dumas, LURE/Univ. Paris-Sud (France)
Gwyn P. Williams, Brookhaven National Lab. (United States)

Published in SPIE Proceedings Vol. 3775:
Accelerator-based Sources of Infrared and Spectroscopic Applications
G. Lawrence Carr; Paul Dumas, Editor(s)

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