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

Petra Rudolf; Rasmita Raval; Paul Dumas; Gwynn Williams

doi:10.1117/12.366643

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

Petra Rudolf, Rasmita Raval, Paul Dumas, Gwynn Williams

Universite de Namur

Résultats de recherche: Contribution à un journal/une revue › Article

Résumé

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.

langue originale	Anglais
Pages (de - à)	182-191
Nombre de pages	10
journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	3775
Les DOIs	https://doi.org/10.1117/12.366643
Etat de la publication	Publié - 1999

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title = "Vibrational dynamics of fullerene molecules adsorbed on metal surfaces: a synchrotron infrared study",

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.",

author = "Petra Rudolf and Rasmita Raval and Paul Dumas and Gwynn Williams",

note = "Publication code : **RES. ACAD.",

year = "1999",

doi = "10.1117/12.366643",

language = "English",

volume = "3775",

pages = "182--191",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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T1 - Vibrational dynamics of fullerene molecules adsorbed on metal surfaces

T2 - a synchrotron infrared study

AU - Rudolf, Petra

AU - Raval, Rasmita

AU - Dumas, Paul

AU - Williams, Gwynn

N1 - Publication code : **RES. ACAD.

PY - 1999

Y1 - 1999

N2 - 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.

AB - 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.

U2 - 10.1117/12.366643

DO - 10.1117/12.366643

M3 - Article

SN - 0277-786X

VL - 3775

SP - 182

EP - 191

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

ER -

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

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