A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
N-Heterocyclic Carbene-Stabilized Gold Nanoclusters with Organometallic Motifs for Promoting Catalysis (2022)

Shen, H., Wu, Q., Malola, S., Han, Y.-Z., Xu, Z., Qin, R., Tang, X., Chen, Y.-B., Teo, B. K., Häkkinen, H., & Zheng, N. (2022). N-Heterocyclic Carbene-Stabilized Gold Nanoclusters with Organometallic Motifs for Promoting Catalysis. Journal of the American Chemical Society, 144(24), 10844-10853. https://doi.org/10.1021/jacs.2c02669

JYU-tekijät tai -toimittajat

Malola, Sami
Häkkinen, Hannu

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Shen, Hui; Wu, Qingyuan; Malola, Sami; Han, Ying-Zi; Xu, Zhen; Qin, Ruixuan; Tang, Xiongkai; Chen, Yang-Bo; Teo, Boon K.; Häkkinen, Hannu; et al.

Lehti tai sarja: Journal of the American Chemical Society

ISSN: 0002-7863

eISSN: 1520-5126

Julkaisuvuosi: 2022

Ilmestymispäivä: 07.06.2022

Volyymi: 144

Lehden numero: 24

Artikkelin sivunumerot: 10844-10853

Kustantaja: American Chemical Society (ACS)

Julkaisumaa: Yhdysvallat (USA)

Julkaisun kieli: englanti

DOI: https://doi.org/10.1021/jacs.2c02669

Julkaisun avoin saatavuus: Ei avoin

Julkaisukanavan avoin saatavuus:

Tiivistelmä

The complexity of heterogeneous metal catalysts makes it challenging to gain insights into their catalytic mechanisms. Thus, there exists a huge gap between heterogeneous catalysis and organometallic catalysis. With the success in the preparation of highly robust atomically precise metal nanocluster catalysts (i.e., [Au16(NHC-1)5(PA)3Br2]3+ and [Au17(NHC-1)4(PA)4Br4]+, where NHC-1 is a bidentate NHC ligand, and PA is phenylacetylide) with surface organometallic motifs anchored on the metallic core, we demonstrate in this work how the metallic core works synergistically with the surface organometallic motifs to enhance the catalysis. More importantly, the discovery allows the development of highly stable and recyclable heterogeneous metal catalysts to achieve efficient hydroamination of alkynes with an extremely low catalyst dosage (0.002 mol %), helping bridge the gap between heterogeneous and homogeneous metal catalysis. The surface modification of metal nanocatalysts with organometallic motifs provides a new design principle of metal catalysts with enhanced catalysis.

YSO-asiasanat: nanohiukkaset; kulta; ligandit; heterosykliset yhdisteet; organometalliyhdisteet; katalyytit

Vapaat asiasanat: catalysts; gold; ligands; metal clusters; metals

Tieteenalat: