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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...

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Autores principales: Sotthewes, Kai, Kap, Özlem, Wu, Hairong, Thompson, Damien, Huskens, Jurriaan, Zandvliet, Harold J. W.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2018
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.
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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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