Alkynyl‐Protected Chiral Bimetallic Ag22Cu7 Superatom with Multiple Chirality Origins
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
Julkaistu sarjassa
Angewandte ChemieTekijät
Päivämäärä
2023Tekijänoikeudet
© 2022 Wiley-VCH GmbH
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.
Julkaisija
WileyISSN Hae Julkaisufoorumista
1433-7851Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/164792361
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Rahoittaja(t)
Suomen AkatemiaRahoitusohjelmat(t)
Akatemiaprofessorin tehtävä, SA; Akatemiaprofessorin tutkimuskulut, SALisätietoja rahoituksesta
T.H. acknowledges the financial support by the Research Center Program of the IBS (IBS-R006-D1) in Korea. M.S.B. acknowledges the IBS for the Young Scientist Fellowship (IBSR006-Y2). N.F.Z. thanks the National Key R&D Program of China (2017YFA0207302) and the NNSF of China (21890752, 21731005, 21721001) for financial support. The computational work at University of Jyväskylä was supported by the Academy of Finland (grants 292352, 294217, and 319208). The computations were performed at the Finnish national supercomputing center CSC. ...Lisenssi
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