A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
A Homoleptic Alkynyl‐Ligated [Au13Ag16L24]3‐ Cluster as a Catalytically Active Eight‐Electron Superatom (2021)

Li, G., Hakkinen, H., Qin, Z., Sharma, S., Wan, C.-Q., Xu, W.-W., & Malola, S. (2021). A Homoleptic Alkynyl‐Ligated [Au13Ag16L24]3‐ Cluster as a Catalytically Active Eight‐Electron Superatom. Angewandte Chemie, 60(2), 970-975. https://doi.org/10.1002/anie.202011780

JYU-tekijät tai -toimittajat

Häkkinen, Hannu
Malola, Sami

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Li, Gao; Hakkinen, Hannu; Qin, Zhaoxian; Sharma, Sachil; Wan, Chong-qing; Xu, Wen-wu; Malola, Sami

Lehti tai sarja: Angewandte Chemie

ISSN: 1433-7851

eISSN: 1521-3773

Julkaisuvuosi: 2021

Volyymi: 60

Lehden numero: 2

Artikkelin sivunumerot: 970-975

Kustantaja: Wiley

Julkaisumaa: Saksa

Julkaisun kieli: englanti

DOI: https://doi.org/10.1002/anie.202011780

Julkaisun avoin saatavuus: Ei avoin

Julkaisukanavan avoin saatavuus:

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/73963

Tiivistelmä

A brand new alkynylated cluster [Au 13 Ag 16 (C 10 H 6 NO) 24 ] 3- is prepared by NaBH 4 mediated reduction method. The AuAg clusters are confirmed by various sophisticated characterization techniques. It manifested the unique metal framework of “Au center @Ag 12 @Au 12 Ag 4 ” is protected by 24 atypical alkyne ligands L (L = C 10 H 6 NO). The ligands were found to construct a unique type of motif L-(Ag)-Au-(Ag)-L at the cluster interface, where, the alkyne (C≡C) group of each L was linked by sharing an Au atom through the σ bonds and each C≡C group was discretely connected to chemically different Ag atom (Ag icosahedral /Ag cap ) through π bonds. The electronic and optical properties of [Au 13 Ag 16 L 24 ] 3- were studied in detail. DFT characterized the cluster as a clear 8-electron superatom, and peaks in the optical absorption spectrum were successfully interpreted in terms of the P and D superatom states. The supported Au 13 Ag 16 L 24 /CeO 2 catalyst exhibited high catalytic activity and selectivity towards the A 3 -coupling reaction involving benzaldehyde, diethylamine and phenylacetylene.

YSO-asiasanat: klusterit; katalyytit; elektronit; optiset ominaisuudet; kemialliset sidokset; tiheysfunktionaaliteoria

Vapaat asiasanat: nanoklusterit

Tieteenalat: