Heteroatom number-dependent cluster frameworks in structurally comparable Pd–Au nanoclusters

Nanoscale, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This work achieved the manipulation of Pd dopant numbers in cluster framework based on two structurally comparable x Au 12 ( = 1, 2) nanoclusters.

Language: Английский

New Transparent Rare‐Earth‐Based Hybrid Glasses: Synthesis, Luminescence, and X‐Ray Imaging Application

Aggregate, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

ABSTRACT Metal–organic hybrid glasses have recently emerged as the fourth member in glass family due to its versatile hosting ability various functional ions. However, no luminescent ions been successfully introduced into date. Here, we reported a benign desolvation method, whereby rare‐earth‐based (RE(NO 3 ) (C 5 H 2 N 4 glasses) were rapidly formed within 1 h at low temperature down 140°C. Such facile synthesis was applicable full rare‐earth family, including Y, Sc, and lanthanide series. The exhibited not only high transparency of over 88% but also quantum yield up 70%, which demonstrated spatial resolution X‐ray imaging screen. Hydrogen bond played key role maintaining structural integrity organic‐metal framework, turn promoted radiative recombination excited states both singlet triplet organic moiety (4,5‐dicyanoiazole, or DCI). An efficient energy transfer from DCI ions, known antenna effect, probed by steady‐state time‐resolved spectroscopy. Apart glasses, incorporation inert such La, Lu generated transparent enhanced room‐temperature phosphorescence. This work improved toolbox metal–organic provided an ideal matrix for energy‐transfer investigation between linker

Language: Английский

Pincer-Ligand-Stabilized Group 10 Metal Nanoclusters: Chirality and Boat–Chair Structural Transformation

The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 2942 - 2949

Published: March 13, 2025

Atomically precise metal nanoclusters bridge the gap between atoms and nanoparticles, providing an ideal platform for correlating macroscopic properties of nanoparticles to their microstructures. In comparison rapid development coin nanoclusters, knowledge on group 10 is relatively limited because active nature, resulting in synthetic challenge. this work, we successfully synthesize three that is, Ni3(SNS)3, Ni3(SNOS)3, Pd3(SNS)3, by using SNS pincer ligands, which well-stabilize nickel palladium kernels. Intrinsic chirality originated from asymmetric arrangement surface ligands discovered. Oxidation-induced irreversible transformation boat-like Ni3(SNS)3 chair-like Ni3(SNOS)3 observed, boat/chair structure-dependent reactivity revealed. The structural features intriguing Ni3 Pd3 stabilized ligand will inspire further research nanoclusters.

Language: Английский