Construction of novel Ag(0)-containing silver nanoclusters by regulating auxiliary phosphine ligands

Abstract

Controlled synthesis of metal clusters through minor changes in surface ligands holds significant interest because the corresponding entities serve as ideal models for investigating the ligand environment's stereochemical and electronic...

Recent advances in synthesis and properties of silver nanoclusters

“…The Zang group synthesized novel Ag(0)-containing Ag NCs by controlling the molecular structures of auxiliary phosphine ligands while keeping the thiolate ligand unchanged. 42 Specifically, they synthesized [Ag 17 (L) 12 (PPh 3 ) 6 ] 3+ (L = quinoline-2-thiol (deprotonated)-4-carboxyl) and [Ag 32 (L) 18 (P(Ph-pCH 3 ) 3 ) 6 Cl 2 ] 4+ (where P(Ph-pCH 3 ) 3 = tri- p -tolylphosphine). The Ag 17 cluster features an Ag 5 trigonal bipyramid core, while the Ag 32 cluster has an Ag 20 inner core formed by the fusion of two Ag 13 icosahedra.…”

Polyoxometalate-mediated syntheses of three structurally new silver clusters

“…nanoclusters have attracted increasing attention from the scientific community due to their novel aesthetic structures, unique physicochemical properties and widespread application, 1–6 including their promising applications in various fields like catalysis, photochromism, chirality, biomedicine, and chemical sensing, etc . 7–14 The synthesis of Ag clusters is inextricably linked to the involvement of surface-protecting organic ligands, mainly thiolate, 15–19 phosphine, 20–22 alkynyl, 23–25 and amide ligands 26 or appropriate combination of these ligands, 27 which can offer more possibilities for the structure and properties of Ag clusters. In addition to the adjustable ligand type, the introduction of structure-directing agents like anionic templates has also largely contributed to the construction of high-nuclearity Ag clusters, and the anion-template synthetic strategy has become a popular route for making novel Ag clusters.…”