Atomically precise gold nanoclusters at the molecular-to-metallic transition with intrinsic chirality from surface layers.

ABSTRACT: The advances in determining the total structure of atomically precise metal nanoclusters have prompted extensive exploration into the origins of chirality in nanoscale systems. While chirality is generally transferrable from the surface layer to the metal-ligand interface and kernel, we present here an alternative type of gold nanoclusters (138 gold core atoms with 48 2,4-dimethylbenzenethiolate surface ligands) whose inner structures are not asymmetrically induced by chiral patterns of the outermost aromatic substituents. This phenomenon can be explained by the highly dynamic behaviors of aromatic rings in the thiolates assembled via π - π stacking and C - H···π interactions. In addition to being a thiolate-protected nanocluster with uncoordinated surface gold atoms, the reported Au₁

SUBMITTER: Liu LJ 

PROVIDER: S-EPMC10133330 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature