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dc.contributor.authorSokolowska, Karolina
dc.contributor.authorHulkko, Eero
dc.contributor.authorLehtovaara, Lauri
dc.contributor.authorLahtinen, Tanja
dc.date.accessioned2018-09-26T05:41:38Z
dc.date.available2018-09-26T05:41:38Z
dc.date.issued2018
dc.identifier.citationSokolowska, K., Hulkko, E., Lehtovaara, L., & Lahtinen, T. (2018). Dithiol-Induced Oligomerization of Thiol-Protected Gold Nanoclusters. <i>Journal of Physical Chemistry C</i>, <i>122</i>(23), 12524-12533. <a href="https://doi.org/10.1021/acs.jpcc.8b02988" target="_blank">https://doi.org/10.1021/acs.jpcc.8b02988</a>
dc.identifier.otherCONVID_28171603
dc.identifier.otherTUTKAID_78317
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/59663
dc.description.abstractControlled synthesis of nanostructure oligomers requires detailed understanding of their wet chemistry and the forces driving the polymerization process. In this paper, we report the main factors affecting the reaction yields of a dithiol-induced synthesis of covalently bound nanocluster dimers and oligomers and present a detailed analysis of possible reaction mechanisms. We synthesize the nanocluster oligomers using monodisperse para-mercaptobenzoic acid (p-MBA)-protected gold nanoclusters with a nominal composition of Au∼250(p-MBA)n to minimize ensemble effects on size, shape, and surface structure. Ligand exchange was performed on the nanoclusters with five different dithiol linkers: 5,5′-bis(mercaptomethyl)-2,2′-bipyridine, 4,4″-thiobisbenzenethiol, benzene-1,4-dithiol, 1,4-benzenedimethanethiol, and dimercaptostilbene. Oligomer yields depend strongly on the used dithiol and on the dithiol-to-nanocluster ratio. Detailed analysis of the reaction yields in combination with simulations suggests that the system reaches a dynamic equilibrium, where ligand exchange happens continuously forming and breaking nanocluster oligomers that are bound together by short chains of disulfide-bridged dithiols. Despite the dynamic nature of the system, dithiol-induced polymerization of nanoclusters is a general and straightforward approach to produce dimers and larger oligomers of thiol-protected nanoclusters. Our work provides physical insight into, offers tools for, and reveals challenges in the controlled synthesis of covalently bound nanoparticle assemblies.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherAmerican Chemical Society
dc.relation.ispartofseriesJournal of Physical Chemistry C
dc.rightsCC BY 4.0
dc.subject.othernanohiukkasetfi
dc.subject.otheroligomeerifi
dc.subject.othernanoparticlesfi
dc.subject.otheroligomerfi
dc.titleDithiol-Induced Oligomerization of Thiol-Protected Gold Nanoclusters
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201809184147
dc.contributor.laitosKemian laitosfi
dc.contributor.laitosDepartment of Chemistryen
dc.contributor.oppiaineFysikaalinen kemiafi
dc.contributor.oppiaineNanoscience Centerfi
dc.contributor.oppiainePhysical Chemistryen
dc.contributor.oppiaineNanoscience Centeren
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2018-09-18T06:15:13Z
dc.description.reviewstatuspeerReviewed
dc.format.pagerange12524-12533
dc.relation.issn1932-7447
dc.relation.numberinseries23
dc.relation.volume122
dc.type.versionpublishedVersion
dc.rights.copyright© 2018 American Chemical Society
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber269402
dc.relation.grantnumber303753
dc.relation.grantnumber290677
dc.subject.ysooligomeeri
dc.subject.ysonanohiukkaset
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p961
jyx.subject.urihttp://www.yso.fi/onto/yso/p23451
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1021/acs.jpcc.8b02988
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderAcademy of Finlanden
dc.relation.funderAcademy of Finlanden
dc.relation.funderAcademy of Finlanden
jyx.fundingprogramAkatemiatutkijan tehtävä, SAfi
jyx.fundingprogramAkatemiatutkijan tutkimuskulut, SAfi
jyx.fundingprogramAkatemiahanke, SAfi
jyx.fundingprogramResearch post as Academy Research Fellow, AoFen
jyx.fundingprogramResearch costs of Academy Research Fellow, AoFen
jyx.fundingprogramAcademy Project, AoFen
jyx.fundinginformationThis work was financially supported by the Academy of Finland via projects 269402, 273499, 303753 (L.L.), and 265502, 290677 (E.H.). We acknowledge Prof. Maija Nissinen for the fruitful discussions


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