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dc.contributor.authorHuayan Yang
dc.contributor.authorYu Wang
dc.contributor.authorJuanzhu Yan
dc.contributor.authorXi Chen (Departments of Physics and Chemistry, Nanoscience Center, University of Jyväskylä)
dc.contributor.authorXin Zhang
dc.contributor.authorHannu Häkkinen (Departments of Physics and Chemistry, Nanoscience Center, University of Jyväskylä)
dc.contributor.authorNanfeng Zheng
dc.contributor.author郑南峰
dc.date.accessioned2014-11-28T09:16:50Z
dc.date.available2014-11-28T09:16:50Z
dc.date.issued2014-05-21
dc.identifier.citationJOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2014,136(20):7197-7200zh_CN
dc.identifier.issn0002-7863
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/80536
dc.description通讯作者地址: Zheng, NF (通讯作者)zh_CN
dc.description.abstractA series of all-thiol stabilized bimetallic Au-Cu nanoclusters, [Au12+nCu32(SR)(30+n)](4-) (n = 0, 2, 4, 6 and SR = SPhCF3), are successfully synthesized and characterized by X-ray single-crystal analysis and density functional theory (DFT) calculations. Each cluster consists of a Keplerate two-shell Au-12@Cu-20 core protected by (6 - n) units of Cu-2(SR)(5) and n units of Cu2Au(SR)(6) (n = 0, 2, 4, 6) motifs on its surface. The size and structural evolution of the clusters is atomically controlled by the Au precursors and countercations used in the syntheses. The clusters exhibit similar optical absorption properties that are not dependent on the number of surface Cu2Au(SR)(6) units. Although DFT suggests an electronic structure with an 18-electron superatom shell closure, the clusters display different thermal stabilities. [Au12+nCu32(SR)(30+n)](4-) clusters with n = 0 and 2 are more stable than those with n = 4 and 6. Moreover, an oxidation product of the clusters, [Au13Cu12(SR)(20)](4-), is structurally identified to gain insight into how the clusters are oxidized.zh_CN
dc.description.sponsorshipMOST of China 2011CB932403 NSFC of China 21131005 21390390 21333008 Academy of Finlandzh_CN
dc.language.isoenzh_CN
dc.publisherAMER CHEMICAL SOCzh_CN
dc.subjectCRYSTAL-STRUCTURESzh_CN
dc.subjectGOLD NANOPARTICLEzh_CN
dc.subjectNANOCRYSTALSzh_CN
dc.subjectCLUSTERSzh_CN
dc.subjectH-2zh_CN
dc.titleStructural Evolution of Atomically Precise Thiolated Bimetallic [Au12+nCu32(SR)(30+n)](4-) (n=0, 2, 4, 6) Nanoclusterszh_CN
dc.typeArticlezh_CN


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