Surface structure and electron transfer dynamics of the self-assembly of cyanide on Au{111}

• Verfasst von: Guttentag, Andrew I. [VerfasserIn]
• Verfasst von: Wächter, Tobias [VerfasserIn]
• Verfasst von: Barr, Kristopher K. [VerfasserIn]
• Verfasst von: Abendroth, John M. [VerfasserIn]
• Verfasst von: Song, Tze-Bin [VerfasserIn]
• Verfasst von: Sullivan, Nichole F. [VerfasserIn]
• Verfasst von: Yang, Yang [VerfasserIn]
• Verfasst von: Allara, David L. [VerfasserIn]
• Verfasst von: Zharnikov, Michael [VerfasserIn]
• Verfasst von: Weiss, Paul S. [VerfasserIn]
• Titel: Surface structure and electron transfer dynamics of the self-assembly of cyanide on Au{111}
• Verf.angabe: Andrew I. Guttentag, Tobias Wächter, Kristopher K. Barr, John M. Abendroth, Tze-Bin Song, Nichole F. Sullivan, Yang Yang, David L. Allara, Michael Zharnikov, and Paul S. Weiss
• E-Jahr: 2016
• Jahr: October 17, 2016
• Umfang: 11 S.
• Fussnoten: Gesehen am 28.08.2020
• Titel Quelle: Enthalten in: The journal of physical chemistry <Washington, DC> / C
• Ort Quelle: Washington, DC : Soc., 2007
• Jahr Quelle: 2016
• Band/Heft Quelle: 120(2016), 47, Seite 26736-26746
• ISSN Quelle: 1932-7455
• DOI: doi:10.1021/acs.jpcc.6b06006
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1727999339

Abstract

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 Å. 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.