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dc.contributor.authorYan, Juanzhu
dc.contributor.authorSu, Hai-Feng
dc.contributor.authorYang, Huayan
dc.contributor.authorHu, Chengyi
dc.contributor.authorMalola, Sami
dc.contributor.authorLin, Shui-Chao
dc.contributor.authorTeo, Boon K.
dc.contributor.authorHäkkinen, Hannu
dc.contributor.authorZheng, Nanfeng
dc.date.accessioned2016-10-24T06:19:36Z
dc.date.available2017-09-14T21:45:08Z
dc.date.issued2016
dc.identifier.citationYan, J., Su, H.-F., Yang, H., Hu, C., Malola, S., Lin, S.-C., . . . Zheng, N. (2016). Asymmetric Synthesis of Chiral Bimetallic [Ag28Cu12(SR)24]4- Nanoclusters via Ion Pairing. <em>Journal of the American Chemical Society</em>, 138 (39), 12751-12754. <a href="http://dx.doi.org/10.1021/jacs.6b08100">doi:10.1021/jacs.6b08100</a>
dc.identifier.otherTUTKAID_71221
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/51662
dc.description.abstractIn this work, a facile ion-pairing strategy for asymmetric synthesis of optically active negatively charged chiral metal nanoparticles using chiral ammonium cations is demonstrated. A new thiolated chiral three-concentric-shell cluster, [Ag28Cu12(SR)24] 4- was first synthesized as a racemic mixture and characterized by single-crystal X-ray structure determination. Mass spectrometric measurements revealed relatively strong ion-pairing interactions between the anionic nanocluster and ammonium cations. Inspired by this observation, the as-prepared racemic mixture was separated into enantiomers by employing chiral quaternary ammonium salts as chiral resolution agents. Subsequently, direct asymmetric synthesis of optically pure enantiomers of [Ag28Cu12(SR)24] 4- was achieved by using appropriate chiral ammonium cations (such as Nbenzylcinchoninium vsN-benzylcinchonidinium) in the cluster synthesis. These simple strategies, ion-pairing enantioseparation and direct asymmetric synthesis using chiral counterions, may be of general use in preparing chiral metal nanoparticles.
dc.language.isoeng
dc.publisherAmerican Chemical Society
dc.relation.ispartofseriesJournal of the American Chemical Society
dc.subject.otherasymmetric synthesis
dc.subject.othernanoclusters
dc.subject.otherion pairing
dc.titleAsymmetric Synthesis of Chiral Bimetallic [Ag28Cu12(SR)24]4- Nanoclusters via Ion Pairing
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201610104308
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosKemian laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.contributor.laitosDepartment of Chemistryen
dc.contributor.oppiaineFysikaalinen kemia
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2016-10-10T06:15:03Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerange12751-12754
dc.relation.issn0002-7863
dc.relation.volume138
dc.type.versionacceptedVersion
dc.rights.copyright© 2016 American Chemical Society. This is a final draft version of an article whose final and definitive form has been published by ACS. Published in this repository with the kind permission of the publisher.
dc.rights.accesslevelopenAccessfi
dc.relation.doi10.1021/jacs.6b08100


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