Vibrational lifetimes of cyanide and carbon monoxide on noble and transition metal surfaces |
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Authors: | Forsblom Mattias Persson Mats |
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Institution: | The Surface Science Research Centre, Department of Chemistry, The University of Liverpool, L69 3BX Liverpool, United Kingdom. |
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Abstract: | The electronic vibrational damping rates of the CN and CO internal stretch modes on the (111) surfaces of Ag, Cu, Au, and Pt were calculated using density functional theory calculations. Our calculated damping rates are in excellent agreement with experimental data obtained from pump-probe laser spectroscopy. The striking difference in trends and magnitudes between the internal stretch modes of CN and CO is in part rationalized in terms of the adsorbate-induced electronic structure within the framework of a simple Newns-Anderson model. |
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