Adatoms underneath Single Porphyrin Molecules on Au(111).
The adsorption of porphyrin derivatives on a Au(111) surface was studied by scanning tunneling microscopy and spectroscopy at low temperatures in combination with density functional theory calculations. Different molecular appearances were found and could be assigned to the presence of single gold a...
| Publicado en: | Journal of the American Chemical Society Vol. 137; no. 5; pp. 1844 - 1850 |
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| Autores principales: | , , , , , |
| Formato: | Artículo |
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American Chemical Society
2/11/2015
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=101328791&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 101328791 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 2/11/2015 vid: 137 iid: 5 pid: 997 pub: American Chemical Society artinfo: ui: 101328791 10.1021/ja510528x ppf: 1844 ppct: 6 formats: tig: atl: Adatoms underneath Single Porphyrin Molecules on Au(111). aug: au: Mielke, Johannes Hanke, Felix Peters, Maike V. Hecht, Stefan Persson, Mats Grill, Leonhard affil: Department of Physical Chemistry, Fritz-Haber Institute of the Max-Planck Society, Faradayweg 4-6, 14195 Berlin, Germany Surface Science Research Centre and Department of Chemistry, University of Liverpool, Liverpool L69 3BX, United Kingdom Chemistry Department, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489 Berlin, Germany Department of Physical Chemistry, University of Graz, Heinrichstrasse 28, 8010 Graz, Austria su: Chemical derivatives Porphyrins Scanning tunneling microscopy Density functional theory Adatoms Molecules Electronic structure Single molecules sug: subj: Chemical derivatives Porphyrins Scanning tunneling microscopy Density functional theory Adatoms Molecules Electronic structure Single molecules ab: The adsorption of porphyrin derivatives on a Au(111) surface was studied by scanning tunneling microscopy and spectroscopy at low temperatures in combination with density functional theory calculations. Different molecular appearances were found and could be assigned to the presence of single gold adatoms bonded by a coordination bond underneath the molecular monolayer, causing a characteristic change of the electronic structure of the molecules. Moreover, this interpretation could be confirmed by manipulation experiments of individual molecules on and off a single gold atom. This study provides a detailed understanding of the role of metal adatoms in surface-molecule bonding and anchoring and of the appearance of single molecules, and it should prove relevant for the imaging of related molecule-metal systems. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2015 holdings: @attributes: islocal: N |
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