Ligand effects in catalysis by atomically precise gold nanoclusters.

ABSTRACT: Atomically precise gold nanoclusters are ideal model catalysts with well-defined compositions and tunable structures. Determination of the ligand effect on catalysis requires the use of gold nanoclusters with protecting ligands as the only variable. Two isostructural Au₃₈ nanoclusters, [Au₃₈(L)₂₀(Ph₃P)₄]²⁺ (L = alkynyl or thiolate), have been synthesized by a direct reduction method, and they have an unprecedented face-centered cubic (fcc)-type Au₃₄ kernel surrounded by 4 AuL₂ staple motifs, 4 Ph₃P, and 12 bridging L ligands. The Au₃₄ kernel can be derived from the fusion of two fcc-type Au₂₀ via sharing a Au₆ face. Catalytic performance was studied with these

SUBMITTER: Wan XK 

PROVIDER: S-EPMC5630233 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature