Vibrational dynamics of fullerene molecules adsorbed on metal surfaces: a synchrotron infrared study

Petra Rudolf; Rasmita Raval; Paul Dumas; Gwyn P. Williams

doi:10.1117/12.366643

25 October 1999 Vibrational dynamics of fullerene molecules adsorbed on metal surfaces: a synchrotron infrared study

Petra Rudolf, Rasmita Raval, Paul Dumas, Gwyn P. Williams

Proceedings Volume 3775, Accelerator-based Sources of Infrared and Spectroscopic Applications; (1999) https://doi.org/10.1117/12.366643
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

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.

Citation Download Citation

Petra Rudolf, Rasmita Raval, Paul Dumas, and Gwyn P. Williams "Vibrational dynamics of fullerene molecules adsorbed on metal surfaces: a synchrotron infrared study", Proc. SPIE 3775, Accelerator-based Sources of Infrared and Spectroscopic Applications, (25 October 1999); https://doi.org/10.1117/12.366643

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