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Journal Article

Femtosecond Surface Vibrational Spectroscopy of CO Adsorbed on Ru(001) during Desorption

MPS-Authors
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Bonn,  Mischa
Physical Chemistry, Fritz Haber Institute, Max Planck Society;
Leiden Institute of Chemistry;

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Hess,  Christian
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Funk,  Stephan
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Miners,  James H.
Fritz Haber Institute, Max Planck Society;

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Wolf,  Martin
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Ertl,  Gerhard
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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PhysRevLett.84.4653.pdf
(Publisher version), 158KB

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Citation

Bonn, M., Hess, C., Funk, S., Miners, J. H., Persson, B. J. N., Wolf, M., et al. (2000). Femtosecond Surface Vibrational Spectroscopy of CO Adsorbed on Ru(001) during Desorption. Physical Review Letters, 84(20), 4653-4656. doi:10.1103/PhysRevLett.84.4653.


Cite as: https://hdl.handle.net/21.11116/0000-0009-287A-2
Abstract
Using time-resolved sum-frequency generation spectroscopy, the C-O stretch vibration of carbon monoxide adsorbed on a single-crystal Ru(001) surface is investigated during femtosecond near-IR laser excitation leading to desorption. A large transient redshift, a broadening of the resonance, and a strong decrease in intensity are observed. These originate from coupling of the C-O stretch to low-frequency modes, especially the frustrated rotation, that are highly excited in the desorption process.