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