Sulfonate, sulfide and thiolate ligands into an ultrasmall nanocluster: [Ag40.13Cu13.87S19(tBuS)20(tBuSO3)12]†
Abstract
A novel Ag–Cu bimetallic nanocluster, Ag40.13Cu13.87S19(tBuS)20(tBuSO3)12, has been synthesized by precise control. The crystal structure reveals that the alloy cluster consists of a Cu10Ag2S7 core, a M42(tBuS)20(tBuSO3)12 shell and another 12 bare S atoms. The sulfonate ligand is observed in NCs for the first time via in situ oxidation of thiolate.