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Título: | Adsorption site determination of a molecular monolayer via inelastic tunneling |
Autor: | Wegner, Daniel; Lorente, Nicolás CSIC ORCID CVN | Palabras clave: | Hybrid organometallic interfaces Adsorption site determination Density functional theory Scanning tunneling microscopy |
Fecha de publicación: | 2013 | Editor: | American Chemical Society | Citación: | Nano Letters 13(6): 2346-2350 (2013) | Resumen: | We have combined scanning tunneling microscopy with inelastic electron tunneling spectroscopy (IETS) and density functional theory (DFT) to study a tetracyanoethylene monolayer on Ag(100). Images show that the molecules arrange in locally ordered patterns with three nonequivalent, but undeterminable, adsorption sites. While scanning tunneling spectroscopy only shows subtle variations of the local electronic structure at the three different positions, we find that vibrational modes are very sensitive to the local atomic environment. IETS detects sizable mode frequency shifts of the molecules located at the three topographically detected sites, which permits us to determine the molecular adsorption sites through identification with DFT calculations. © 2013 American Chemical Society. | URI: | http://hdl.handle.net/10261/99132 | DOI: | 10.1021/nl304081q | Identificadores: | doi: 10.1021/nl304081q issn: 1530-6984 e-issn: 1530-6992 |
Aparece en las colecciones: | (CIN2) Artículos |
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