Engineering ligand chemistry on Au₂₅ nanoclusters: from unique ligand addition to precisely controllable ligand exchange.

ABSTRACT: Au₂₅ nanoclusters (NCs) protected by 18 thiol-ligands (Au₂₅SR₁₈, SR is a thiolate ligand) are the prototype of atomically precise thiolate-protected gold NCs. Studies concerning the alteration of the number of surface ligands for a given Au₂₅SR₁₈ NC are scarce. Herein we report the conversion of hydrophobic Au₂₅PET₁₈ (PET = 2-phenylethylthiolate) NCs to Au₂₅SR₁₉ [Au₂₅PET₁₈(metal complex)₁] induced by ligand exchange reactions (LERs) with thiolated terpyridine-metal complexes (metal complex, metal = Ru, Fe, Co, Ni) under mild conditions (room temperature and low amounts of incoming ligands). Interestingly, we found that the ligand addition reaction on Au₂₅

SUBMITTER: Zhao J 

PROVIDER: S-EPMC10355100 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature