Controlled aggregation of Pt/PtH/Rh/RhH doped silver superatomic nanoclusters into 16-electron supermolecules.
Tzu-Hao ChiuMichael N PillayYing-Yann WuYoshiki NiihoriYuichi NegishiJie-Ying ChenYuan Jang ChenSamia KahlalJean-Yves SaillardC W LiuPublished in: Chemical science (2024)
The assembly of discrete superatomic nanoclusters into larger constructs is a significant stride towards developing a new set of artificial/pseudo-elements. Herein, we describe a novel series of 16-electron supermolecules derived from the combination of discrete 8-electron superatomic synthons containing interstitial hydrides as vertex-sharing building blocks. The symmetric (RhH) 2 Ag 33 [S 2 P(OPr) 2 ] 17 (1) and asymmetric PtHPtAg 32 [S 2 P(OPr) 2 ] 17 (2) are characterized by ESI-MS, SCXRD, NMR, UV-vis absorption spectra, electrochemical and computational methods. Cluster 1 represents the first group 9-doped 16-electron supermolecule, composed of two icosahedral (RhH)@Ag 12 8-electron superatoms sharing a silver vertex. Cluster 2 results from the assembly of two distinct icosahedral units, Pt@Ag 12 , and (PtH)@Ag 12 . In both cases, the presence of the interstitial hydrides is unprecedented. The stability of the supermolecules is investigated, and 2 spontaneously transforms into Pt 2 Ag 33 [S 2 P(OPr) 2 ] 17 (3) with thermal treatment. The lability of the hydride within the icosahedral framework in solution at low-temperature was confirmed by the VT-NMR.
Keyphrases
- quantum dots
- visible light
- highly efficient
- sensitive detection
- gold nanoparticles
- solid state
- solar cells
- energy transfer
- ms ms
- electron transfer
- magnetic resonance
- electron microscopy
- high resolution
- mass spectrometry
- social media
- multiple sclerosis
- health information
- fluorescent probe
- healthcare
- silver nanoparticles
- density functional theory
- molecularly imprinted
- molecular dynamics
- atomic force microscopy