A1 Journal article (refereed)
Alkynyl‐Protected Chiral Bimetallic Ag22Cu7 Superatom with Multiple Chirality Origins (2023)


Deng, G., Lee, K., Deng, H., Malola, S., Bootharaju, M. S., Häkkinen, H., Zheng, N., & Hyeon, T. (2023). Alkynyl‐Protected Chiral Bimetallic Ag22Cu7 Superatom with Multiple Chirality Origins. Angewandte Chemie, 62(12), Article e202217483. https://doi.org/10.1002/anie.202217483


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Publication details

All authors or editorsDeng, Guocheng; Lee, Kangjae; Deng, Hongwen; Malola, Sami; Bootharaju, Megalamane S.; Häkkinen, Hannu; Zheng, Nanfeng; Hyeon, Taeghwan

Journal or seriesAngewandte Chemie

ISSN1433-7851

eISSN1521-3773

Publication year2023

Publication date29/12/2022

Volume62

Issue number12

Article numbere202217483

Publication countryGermany

Publication languageEnglish

DOIhttps://doi.org/10.1002/anie.202217483

Publication open accessNot open

Publication channel open access

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/84658


Abstract

Understanding the origin of chirality in the nanostructured materials is essential for chiroptical and catalytic applications. Here we report a chiral AgCu superatomic cluster, [Ag22Cu7(C≡CR)16(PPh3)5Cl6](PPh4), Ag22Cu7, protected by an achiral alkynyl ligand (HC≡CR: 3,5-bis(trifluoromethyl)phenylacetylene). Its crystal structure comprises a rare interpenetrating biicosahedral Ag17Cu2 core, which is stabilized by four different types of motifs: one Cu(C≡CR)2, four -C≡CR, two chlorides and one helical Ag5Cu4(C≡CR)10(PPh3)5Cl4. Structural analysis reveals that Ag22Cu7 exhibits multiple chirality origins, including the metal core, the metal-ligand interface and the ligand layer. Furthermore, the circular dichroism spectra of R/S-Ag22Cu7 are obtained by employing appropriate chiral molecules as optical enrichment agents. DFT calculations show that Ag22Cu7 is an eight-electron superatom, confirm that the cluster is chirally active, and help to analyze the origins of the circular dichroism.


Keywordsnanosciencesnanostructuresnanoparticlesmaterials (matter)atomsclusterssilvercopper


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Ministry reportingYes

Reporting Year2023

JUFO rating3


Last updated on 2024-15-06 at 22:06