Interdependence between nanoclusters AuAg₂₄ and Au₂Ag₄₁.

ABSTRACT: Whole series of nanoparticles have now been reported, but probing the competing or coexisting effects in their synthesis and growth remains challenging. Here, we report a bi-nanocluster system comprising two ultra-small, atomically precise nanoclusters, AuAg₂₄(SR)₁₈^- and Au₂Ag₄₁(SR)₂₆(Dppm)₂⁺ (SR = cyclohexyl mercaptan, Dppm = bis(diphenylphosphino)-methane). The mechanism by which these two nanoclusters coexist is elucidated, and found to entail formation of the unstable AuAg₂₄(SR)₁₈^-, followed by its partial conversion to Au₂Ag₄₁(SR)₂₆(Dppm)₂⁺ in the presence of di-phosphorus ligands, and an interdependent bi-nanoc

SUBMITTER: Liu D 

PROVIDER: S-EPMC7858706 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature