Vibrational spectroscopy on single C-60 molecules: The role of molecular 
orientation

Pascual, José I.; Gómez-Herrero, J.; Sánchez-Portal, D.; Rust, Hans-Peter

doi:10.1063/1.1524155

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Vibrational spectroscopy on single C-60 molecules: The role of molecular orientation

MPS-Authors

/persons/resource/persons21943

Pascual, José I.
Molecular Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22034

Rust, Hans-Peter
Chemical Physics, Fritz Haber Institute, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Pascual, J. I., Gómez-Herrero, J., Sánchez-Portal, D., & Rust, H.-P. (2002). Vibrational spectroscopy on single C-60 molecules: The role of molecular orientation. Journal of Chemical Physics, 117(21), 9531-9534. doi:10.1063/1.1524155.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-12FB-6

Abstract

The excitation of a fullerene-cage vibrational mode by inelastic tunneling electrons has been observed on single C-60 molecules adsorbed on Ag(110). The vibration is assigned to the H-g(omega(2)) mode. A critical enhancement of the inelastic signal was found on fullerenes oriented along one of their symmetry axis upon adsorption. In strong coincidence, those fullerenes maintain a resonance structure at the Fermi level that resembles the first unoccupied molecular orbital distribution of a free molecule, as determined by comparison with ab initio calculations. The degree of symmetry of the adsorbed fullerene is found to be crucial for resonant mechanism of vibrational excitation. We also propose that mode degeneracy splitting may reduce mode detection