STM observation of sulfur dimerization in alkanethiol self-assembled monolayers on Au{111}

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dc.contributor.author O'Dwyer, Colm
dc.date.accessioned 2013-03-04T17:14:42Z
dc.date.available 2013-03-04T17:14:42Z
dc.date.copyright 2005
dc.date.issued 2005-01
dc.identifier.citation O'Dwyer, C. (2005)'STM Observation of Sulfur Dimerization in Alkanethiol Self-Assembled Monolayers on Au{111}', 207th Meeting of the Electrochemical Society: Electrocatalysis. Quebec, Canada, 15-20 May, 2005. Pennington, NJ: The Electrochemical Society, 11, pp. 123-132. en
dc.identifier.volume 11 en
dc.identifier.startpage 123 en
dc.identifier.endpage 132 en
dc.identifier.isbn 1-56677-436-5
dc.identifier.uri http://hdl.handle.net/10468/1014
dc.description.abstract We present for the first time, direct microscopical observation by STM of sulfur dimer formation on alkanethiol self-assembled monolayers (SAM) on sputtered Au substrates. The sulfur dimers are observed when imaging at a bias where the tip-molecule interaction occurs, and are formed by displacement of sulfur atoms from their normal three-fold hollow site residence of the (4 × 2) superlattice to nearest-neighbor bridge-site residence between two Au atoms. The displacement is believed to occur due to defects induced in the alkyl chain of the monolayer due to the proximity of the STM tip. Only one of the sulfur atoms forming the dimer is bound to the surface and they are commensurate with the Au{111} adlattice along its [112] directions. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher The Electrochemical Society en
dc.relation.ispartof 207th Meeting of the Electrochemical Society Conference, Quebec, Canada, 15-20 May, 2005.
dc.relation.uri http://www.electrochem.org/dl/pv/published/2005/2005.htm
dc.rights © The Electrochemical Society, Inc. 2005. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in O'Dwyer, C. (2005) 'STM Observation of Sulfur Dimerization in Alkanethiol Self-Assembled Monolayers on Au{111}', 207th Meeting of the Electrochemical Society: Electrocatalysis. Quebec, Canada, 15-20 May, 2005. Pennington, NJ: The Electrochemical Society, 11, pp. 123-132. en
dc.subject Self-assembled monolayers (SAM) en
dc.subject Au substrate en
dc.subject Sulfur dimers en
dc.subject Superlattice en
dc.subject Alkyl chain en
dc.subject Au{111} en
dc.subject Tip-molecule en
dc.subject.lcsh Electrochemistry en
dc.subject.lcsh Materials science en
dc.title STM observation of sulfur dimerization in alkanethiol self-assembled monolayers on Au{111} en
dc.type Conference item en
dc.internal.authorurl http://research.ucc.ie/profiles/D004/codwyer en
dc.internal.authorcontactother Colm O'Dwyer, Chemistry, University College Cork, Cork, Ireland. +353-21-490-3000 Email: c.odwyer@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2012-11-30T09:28:39Z
dc.description.version Accepted Version en
dc.internal.rssid 162343073
dc.description.status Peer reviewed en
dc.identifier.journaltitle Proc. Electrochem. Soc. en
dc.internal.copyrightchecked No en
dc.internal.licenseacceptance Yes en
dc.internal.conferencelocation Quebec, Canada, en
dc.internal.IRISemailaddress c.odwyer@ucc.ie en


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