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...

Anchoring of Metal Complexes on Au25 Nanocluster for Enhanced Photocoupled Electrocatalytic CO2 Reduction

“…We have shown recently that a charge effect hinders further ligand exchange with metal complexes. [18] Since Au 25 SR 18 is symmetric, there are only two distinct sites within the staples (SRÀ AuÀ SRÀ AuÀ SR). Bulky chromophores can exchange…”

“…Noteworthily, MS indicates that only one PET ligand was replaced by metal complex. We have shown recently that a charge effect hinders further ligand exchange with metal complexes [18] . Since Au 25 SR 18 is symmetric, there are only two distinct sites within the staples (SR−Au−SR−Au−SR).…”

Anchoring of Metal Complexes on Au25 Nanocluster for Enhanced Photocoupled Electrocatalytic CO2 Reduction

“…We have shown recently that a charge effect hinders further ligand exchange with metal complexes. [18] Since Au 25 SR 18 is symmetric, there are only two distinct sites within the staples (SRÀ AuÀ SRÀ AuÀ SR). Bulky chromophores can exchange on both possible sites on Au 25 staples.…”

Constructing perfect cubic Ag–Cu alloyed nanoclusters through selective elimination of phosphine ligands

“…Fortunately, metal nanoclusters have emerged as a swiftly advancing category of nanomaterials characterised by their atomically precise structures and diverse applications. 14–29 Furthermore, the morphology of metal nanoclusters, such as metal–metal bonds and metal–ligand interactions, can be precisely controlled through ligand exchange, 30–35 metal doping, 36–40 and other techniques. 41,42 Most importantly, single-crystal X-ray diffraction enables us to obtain atomic-level interface information, including the arrangement of doped metals within nanoclusters and the bonding modes between peripheral ligands and metals.…”