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Ordering of Air-Oxidized Decanethiols on Au(111)
[Image: see text] Self-assembled monolayers (SAMs) of alkanethiols on gold are a commonly used platform for nanotechnology owing to their ease of preparation and high surface coverage. Unfortunately, the gold–sulfur bond is oxidized at ambient conditions which alters the stability and structure of t...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical
Society
2018
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5911804/ https://www.ncbi.nlm.nih.gov/pubmed/29707099 http://dx.doi.org/10.1021/acs.jpcc.8b01389 |
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author | Sotthewes, Kai Kap, Özlem Wu, Hairong Thompson, Damien Huskens, Jurriaan Zandvliet, Harold J. W. |
author_facet | Sotthewes, Kai Kap, Özlem Wu, Hairong Thompson, Damien Huskens, Jurriaan Zandvliet, Harold J. W. |
author_sort | Sotthewes, Kai |
collection | PubMed |
description | [Image: see text] Self-assembled monolayers (SAMs) of alkanethiols on gold are a commonly used platform for nanotechnology owing to their ease of preparation and high surface coverage. Unfortunately, the gold–sulfur bond is oxidized at ambient conditions which alters the stability and structure of the monolayer. We show using scanning tunneling microscopy and X-ray photoelectron spectroscopy that decanethiolate molecules oxidize into decanesulfonates that organize into a hitherto unknown striped phase. Air-exposed SAMs oxidize, as can be determined by a shift of the S 2p peak and the appearance of O 1s photoelectrons as part of the decanethiol monolayer transforms into a lamellae-like decanesulfonate structure when exposed to air. The herringbone structure of the Au(111) surface is preserved, indicating that the interaction between the molecules and the surface is rather weak as these findings are substantiated by density functional theory calculations. |
format | Online Article Text |
id | pubmed-5911804 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | American Chemical
Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-59118042018-04-24 Ordering of Air-Oxidized Decanethiols on Au(111) Sotthewes, Kai Kap, Özlem Wu, Hairong Thompson, Damien Huskens, Jurriaan Zandvliet, Harold J. W. J Phys Chem C Nanomater Interfaces [Image: see text] Self-assembled monolayers (SAMs) of alkanethiols on gold are a commonly used platform for nanotechnology owing to their ease of preparation and high surface coverage. Unfortunately, the gold–sulfur bond is oxidized at ambient conditions which alters the stability and structure of the monolayer. We show using scanning tunneling microscopy and X-ray photoelectron spectroscopy that decanethiolate molecules oxidize into decanesulfonates that organize into a hitherto unknown striped phase. Air-exposed SAMs oxidize, as can be determined by a shift of the S 2p peak and the appearance of O 1s photoelectrons as part of the decanethiol monolayer transforms into a lamellae-like decanesulfonate structure when exposed to air. The herringbone structure of the Au(111) surface is preserved, indicating that the interaction between the molecules and the surface is rather weak as these findings are substantiated by density functional theory calculations. American Chemical Society 2018-03-26 2018-04-19 /pmc/articles/PMC5911804/ /pubmed/29707099 http://dx.doi.org/10.1021/acs.jpcc.8b01389 Text en Copyright © 2018 American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes. |
spellingShingle | Sotthewes, Kai Kap, Özlem Wu, Hairong Thompson, Damien Huskens, Jurriaan Zandvliet, Harold J. W. Ordering of Air-Oxidized Decanethiols on Au(111) |
title | Ordering of Air-Oxidized Decanethiols on Au(111) |
title_full | Ordering of Air-Oxidized Decanethiols on Au(111) |
title_fullStr | Ordering of Air-Oxidized Decanethiols on Au(111) |
title_full_unstemmed | Ordering of Air-Oxidized Decanethiols on Au(111) |
title_short | Ordering of Air-Oxidized Decanethiols on Au(111) |
title_sort | ordering of air-oxidized decanethiols on au(111) |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5911804/ https://www.ncbi.nlm.nih.gov/pubmed/29707099 http://dx.doi.org/10.1021/acs.jpcc.8b01389 |
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