Surface Structure and Electron Transfer Dynamics of the Self-Assembly of Cyanide on Au{111}
| Autor: | David L. Allara, Nichole Sullivan, Tze-Bin Song, John M. Abendroth, Michael Zharnikov, Paul S. Weiss, Andrew I. Guttentag, Kristopher Barr, Yang Yang, Tobias Wächter |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Technology
Cyanide 02 engineering and technology 010402 general chemistry 01 natural sciences Molecular physics Physical Chemistry Electron transfer chemistry.chemical_compound Adsorption Engineering Lattice (order) Monolayer Molecule Physics::Chemical Physics Physical and Theoretical Chemistry Surface states Auger electron spectroscopy Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials General Energy Chemical Sciences Atomic physics 0210 nano-technology |
| Zdroj: | Guttentag, AI; Waechter, T; Barr, KK; Abendroth, JM; Song, T-B; Sullivan, NF; et al.(2016). Surface Structure and Electron Transfer Dynamics of the Self-Assembly of Cyanide on Au{111}. Journal of Physical Chemistry C, 120(47), 26736-26746. doi: 10.1021/acs.jpcc.6b06006. UCLA: Retrieved from: http://www.escholarship.org/uc/item/0dt8s72j The Journal of Physical Chemistry C, vol 120, iss 47 Journal of Physical Chemistry C, vol 120, iss 47 |
| DOI: | 10.1021/acs.jpcc.6b06006. |
| Popis: | A vibronic resonance between Au{111} surface states and adsorbed CN vibrations has been predicted, which we target for study. We have formed stable monolayers of cyanide on Au{111} and observe a hexagonal close-packed lattice with a nearest neighbor distance of 3.8 ± 0.5 A. Cyanide orients normal to the surface attached via a Au–C bond. We show that the substrate–molecule coupling is particularly strong, leading to ultrafast electron transfer from the cyanide molecules to the Au{111} substrate as measured by resonant Auger spectroscopy using the core–hole clock method. The CN/Au{111} system is a simple example of a strongly interacting adsorbate–substrate system and will be the subject of a number of further studies, as discussed. |
| Databáze: | OpenAIRE |
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