“Visualizing” the partially reversible conversion of gold nanoclusters via the Au23(S-c-C6H11)17 intermediate

Transformation chemistry of atomically precise metal nanoclusters has emerged as a novel strategy for fundamental research on the structure–property correlations of nanomaterials. However, a thorough understanding of the transformation mechanism is indeed necessary to understand the structural growt...

Full description

Saved in:
Bibliographic Details
Published in:Chemical science (Cambridge) 2024-06, Vol.15 (25), p.9823-9829
Main Authors: Gratious, Saniya, Afreen, Mahal, Eti, Thomas, Jibin, Saha, Shubhadeep, Nair, Akhil S, Adarsh, K V, Pathak, Biswarup, Mandal, Sukhendu
Format: Article
Language:English
Subjects:
Chemistry
Ligands
Nanoclusters
Nanomaterials
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Transformation chemistry of atomically precise metal nanoclusters has emerged as a novel strategy for fundamental research on the structure–property correlations of nanomaterials. However, a thorough understanding of the transformation mechanism is indeed necessary to understand the structural growth patterns and corresponding property evolutions in nanoclusters. Herein, we present the ligand-exchange-induced transformation of the [Au23(SR)16]− (8e−) nanocluster to the [Au25(SR′)18]− (8e−) nanocluster, through the Au23(SR)17 (6e−) intermediate species. Identification of this key intermediate through a partially reversible transformation helped in a detailed investigation into the transformation mechanism with atomic precision. Moreover, photophysical studies carried out on this Au23(SR)17 species, which only differs by a single ligand from that of the [Au23(SR)16]− nanocluster reveal the property evolutions at the slightest change in the nanocluster structure.
ISSN:2041-6520
2041-6539
DOI:10.1039/d4sc01225a