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나노입자 연구단
나노입자 연구단
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Cd12Ag32(SePh)36: Non-Noble Metal Doped Silver Nanoclusters

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Title
Cd12Ag32(SePh)36: Non-Noble Metal Doped Silver Nanoclusters
Author(s)
Megalamane S. Bootharaju; Hogeun Chang; Deng G.; Malola S.; Woonhyuk Baek; Hakkinen H.; Zheng N.; Taeghwan Hyeon
Publication Date
2019-05
Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.141, no.21, pp.8422 - 8425
Publisher
AMER CHEMICAL SOC
Abstract
© 2019 American Chemical Society.While there are numerous recent reports on doping of a ligand-protected noble metal nanocluster (e.g., Au and Ag) with another noble metal, non-noble metal (e.g., Cd) doping remains challenging. Here, we design a phosphine-assisted synthetic strategy and synthesize a Cd doped Ag nanocluster, Cd12Ag32(SePh)36 (SePh: selenophenolate), which exhibits characteristic UV-vis absorption features and rare near-infrared (NIR) photoluminescence at ∼1020 nm. The X-ray single crystal structure reveals an asymmetric two-shell Ag4@Ag24 metal kernel protected by four nonplanar Cd3Ag(SePh)9 metal-ligand frameworks. Furthermore, the electronic structure analysis shows that the cluster is a 20-electron "superatom" and density functional theory predicts that its chiral optical response is comparable to the well-known Au38(SR)24 cluster. Our synthetic approach will pave a new path for introducing other non-noble metals into noble metal nanoclusters for exploring their effect on optical and chemical properties
URI
https://pr.ibs.re.kr/handle/8788114/6925
ISSN
0002-7863
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
Files in This Item:
1.Cd12Ag32.pdfDownload

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