Observation of Charge-Transfer States for Pyridine Chemisorbed on Ag(111)
- 6 July 1981
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 47 (1), 57-60
- https://doi.org/10.1103/physrevlett.47.57
Abstract
The excited states of chemisorbed pyridine on Ag(111) have been determined with use of electron-energy-loss spectroscopy. In addition to weakly perturbed molecular states we observe new excitations above \ensuremath{\sim}1.4 eV, which we identify as metal-molecule charge-transfer excitations. These new electronic states provide an explanation for several features observed in surface-enhanced Raman scattering.Keywords
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