Cd12Ag32(SePh)36 : Non-Noble Metal Doped Silver Nanoclusters
Bootharaju, M. S., Chang, H., Deng, G., Malola, S., Baek, W., Häkkinen, H., Zheng, N., & Hyeon, T. (2019). Cd12Ag32(SePh)36 : Non-Noble Metal Doped Silver Nanoclusters. Journal of the American Chemical Society, 141(21), 8422-8425. https://doi.org/10.1021/jacs.9b03257
Published inJournal of the American Chemical Society
© 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. ...
PublisherAmerican Chemical Society
Publication in research information system
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Related funder(s)Academy of Finland
Funding program(s)Research costs of Academy Professor, AoF
Additional information about fundingT.H. acknowledges the financial support by the Research Center Program of the IBS (IBS-R006-D1) in Korea. H.H. acknowledges support from the Academy of Finland (Grants 294217, 319208, and the Academy Professorship). The computations were made at the CSC supercomputing center in Espoo, Finland. N.F.Z. acknowledges the financial support from the National Key R&D Program of China (2017YFA0207302) and the National Natural Science Foundation of China (21890752, 21731005, and 21420102001). ...
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