DICP OpenIR
Subject Area物理化学
An Intermetallic Au24Ag20 Superatom Nanocluster Stabilized by Labile Ligands
Wang, Yu1,2; Su, Haifeng1,2; Xu, Chaofa1,2; Li, Gang3,4; Gell, Lars5,6; Lin, Shuichao1,2; Tang, Zichao3; Hakkinen, Hannu6; Zheng, Nanfeng1,2,5; NanfengZheng
Source PublicationJOURNAL OF THE AMERICAN CHEMICAL SOCIETY
2015-04-08
DOI10.1021/jacs.5b01232
Volume137Issue:13Pages:4324-4327
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordSCANNING-TUNNELING-MICROSCOPY ; PROTECTED GOLD NANOPARTICLES ; CRYSTAL-STRUCTURE ; SILVER NANOPARTICLES ; OPTICAL-PROPERTIES ; AU-25 CLUSTER ; BINDING MOTIF ; THIOLATE ; RESOLUTION ; SURFACE
AbstractAn intermetallic nanocluster containing 44 metal atoms, Au24Ag20(2-SPy)(4)(PhC C)(20)C-l2, was successfully synthesized and structurally characterized by single-crystal analysis and density funtional theory computations. The 44 metal atoms in the cluster are arranged as a concentric three-shell Au-12@Ag-20@Au-12 Keplerate structure having a high symmetry. For the first time, the co-presence of three different types of anionic ligands (i.e., phenylalkynyl, 2-pyridylthiolate, and chloride) was revealed on the surface of metal nanoclusters. Similar to thiolates, alkynyls bind linearly to surface Au atoms using their s-bonds, leading to the formation of two types of surface staple units (PhC C-Au-L, L = PhC C- or 2-pyridylthiolate) on the cluster. The co-presence of three different surface ligands allows the site-specific surface and functional modification of the cluster. The lability of PhC C- ligands on the cluster was demonstrated, making it possible to keep the metal core intact while removing partial surface capping. Moreover, it was found that ligand exchange on the cluster occurs easily to offer various derivatives with the same metal core but different surface functionality and thus different solubility.
Language英语
WOS IDWOS:000352752000013
Citation statistics
Cited Times:101[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/143776
Collection中国科学院大连化学物理研究所
Corresponding AuthorNanfengZheng
Affiliation1.Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Collaborat Innovat Ctr Chem Energy Mat, Xiamen 361005, Peoples R China
2.Xiamen Univ, Coll Chem & Chem Engn, Natl Engn Lab Green Chem Prod Alcohols Ethers Est, Xiamen 361005, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
4.Dalian Univ Technol, Inst Coal Chem Engn, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
5.Univ Jyvaskyla, Nanosci Ctr, Dept Phys, FI-40014 Jyvaskyla, Finland
6.Univ Jyvaskyla, Nanosci Ctr, Dept Chem, FI-40014 Jyvaskyla, Finland
Recommended Citation
GB/T 7714
Wang, Yu,Su, Haifeng,Xu, Chaofa,et al. An Intermetallic Au24Ag20 Superatom Nanocluster Stabilized by Labile Ligands[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2015,137(13):4324-4327.
APA Wang, Yu.,Su, Haifeng.,Xu, Chaofa.,Li, Gang.,Gell, Lars.,...&NanfengZheng.(2015).An Intermetallic Au24Ag20 Superatom Nanocluster Stabilized by Labile Ligands.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,137(13),4324-4327.
MLA Wang, Yu,et al."An Intermetallic Au24Ag20 Superatom Nanocluster Stabilized by Labile Ligands".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 137.13(2015):4324-4327.
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