A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Photo-Induced Cluster-to-Cluster Transformation of [Au37–xAgx(PPh3)13Cl10]3+ into [Au25–yAgy(PPh3)10Cl8]+ : Fragmentation of a Trimer of 8-Electron Superatoms by Light (2021)

Qin, Z., Wang, J., Sharma, S., Malola, S., Wu, K., Häkkinen, H., & Li, G. (2021). Photo-Induced Cluster-to-Cluster Transformation of [Au37–xAgx(PPh3)13Cl10]3+ into [Au25–yAgy(PPh3)10Cl8]+ : Fragmentation of a Trimer of 8-Electron Superatoms by Light. Journal of Physical Chemistry Letters, 12(44), 10920-10926. https://doi.org/10.1021/acs.jpclett.1c02863

JYU-tekijät tai -toimittajat

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Qin, Zhaoxian; Wang, Junhui; Sharma, Sachil; Malola, Sami; Wu, Kaifeng; Häkkinen, Hannu; Li, Gao

Lehti tai sarja: Journal of Physical Chemistry Letters

eISSN: 1948-7185

Julkaisuvuosi: 2021

Ilmestymispäivä: 04.11.2021

Volyymi: 12

Lehden numero: 44

Artikkelin sivunumerot: 10920-10926

Kustantaja: American Chemical Society (ACS)

Julkaisumaa: Yhdysvallat (USA)

Julkaisun kieli: englanti

DOI: https://doi.org/10.1021/acs.jpclett.1c02863

Julkaisun avoin saatavuus: Ei avoin

Julkaisukanavan avoin saatavuus: 

Tiivistelmä

We present the photoinduced size/structure transformation of [Au37−xAgx(PPh3)13Cl10]3+ (M37) into [Au25−yAgy(PPh3)10Cl8]+ (M25) cluster. Single-crystal X-ray diffraction revealed that M37 has a tri-icosahedron M36 metal core assembled via the fusion of three Au7Ag6 icosahedrons in a cyclic fashion and that the M36 core is further protected by phosphine and chloride ligands. The M37 cluster is found to be highly sensitive toward ambient light, and the M37 → M25 transition is observed with 530 nm irradiation, monitored by time-dependent UV−vis spectroscopy, electrospray ionization mass spectrometry (ESI-MS), and femtosecond transient absorption spectroscopy. Linear-response time-dependent DFT calculations indicated that the strong absorption of the M37 cluster close to 500 nm induces an antibonding-type configuration in the induced electron density within the plane of the three 8-electron systems, possibly promoting dissociation of one of the 8-electron superatoms. This theoretical result supports the experimental observation of the sensitivity of the M37 → M25 transition to 530 nm irradiation.

YSO-asiasanat: nanohiukkaset; klusterit; kulta; valokemia

Vapaat asiasanat: light; metals; gold; cluster chemistry; metal clusters

Liittyvät organisaatiot

Hankkeet, joissa julkaisu on tehty

OKM-raportointi: Kyllä

Raportointivuosi: 2021

JUFO-taso: 3