[Ag₉(1,2-BDT)₆]^3-: How Square-Pyramidal Building Blocks Self-Assemble into the Smallest Silver Nanocluster.

ABSTRACT: The emerging promise of few-atom metal catalysts has driven the need for developing metal nanoclusters (NCs) with ultrasmall core size. However, the preparation of metal NCs with single-digit metallic atoms and atomic precision is a major challenge for materials chemists, particularly for Ag, where the structure of such NCs remains unknown. In this study, we developed a shape-controlled synthesis strategy based on an isomeric dithiol ligand to yield the smallest crystallized Ag NC to date: [Ag₉(1,2-BDT)₆]^3- (1,2-BDT = 1,2-benzenedithiolate). The NC's crystal structure reveals the self-assembly of two Ag square pyramids through preferential pyramidal vertex sharing of a single metallic Ag atom, while all other Ag atoms are incorporated in a motif with thiola

SUBMITTER: Alamer BJ 

PROVIDER: S-EPMC8041283 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature