Anionic passivation layer-assisted trapping of an icosahedral Ag13 kernel in a truncated tetrahedral Ag89 nanocluster

Alkynyl and halogen co-protected (AuAg)44 nanoclusters: a comparative study on their optical absorbance, structure, and hydrogen evolution performance

“…In the past decade, atomically precise noble metal nanoclusters have been attracting intensive research interest, mainly thanks to their unique optical features, interesting physicochemical properties, and widespread applications in catalysis, optoelectronic, sensing, and bioimaging. [1][2][3][4][5][6] Compared with homometallic nanoclusters, bimetallic nanoclusters usually exhibit significantly different optical properties, improved stability, and enhanced catalytic performance due to the alloying induced geometric and electronic structural change. [7][8][9][10][11] Among all types of bimetallic nanoclusters, AuAg alloys are the most widely studied ones, where thiolate and/or phosphide molecules are the most often employed ligands for protection.…”

“…[7][8][9][10][11] Among all types of bimetallic nanoclusters, AuAg alloys are the most widely studied ones, where thiolate and/or phosphide molecules are the most often employed ligands for protection. For instance, the total struc-ture and optical properties of thiolate and/or phosphide ligand protected Au 15 Ag 3 (SC 6 H 11 ) 14 , 12 Au 15 Ag 3 (SPhMe 2 ) 14 , 13 [Au 1 Ag 22 (S-Adm) 12 ] 3+ , 14 [Ag x Au 25−x (PPh 3 ) 10 (RS) 5 Cl 2 ] 2+ (x = 1-13), 15 Au 25−x Ag x (SC 6 H 11 ) 18 (x = 1-9), 16 Au 36−x Ag x (SPh-t Bu) 24 (x = 1-s6), 17 Au 38−x Ag x (SCH 2 CH 2 Ph) 24 (x = 1-5), 18 [Au 3 Ag 38 (SCH 2 Ph) 24 X 5 ] 2− (X = Cl or Br), 19 Au 2 Ag 42 (SAdm) 27 (BPh 4 ), 20 [Au 2 Ag 48 (S-t Bu) 20 (Dppm) 6 Br 11 ]Br(BPh 4 ), 20 [Ag 46 Au 24 (SR) 32 ] 2+ , 21 Au 130−x Ag x (TBBT) 55 (average x = 98), 22 etc. have been documented.…”

A Homoleptic Alkynyl‐Protected Au(I)9‐Ag(I)9 Cluster: Structure Analysis, Optical Properties, and Catalytic Implications

“…Atom-precise nanoclusters (NCs) have been recently attracting widespread research interests thanks to their defined structures, [1,2] uniform size distributions, [3,4] unique properties, [5,6] and various applications in catalysis, sensing, biolabeling, and medical therapeutics. [7][8][9][10] In the past decades, significant advances have been achieved in the aspects of synthesis, structure analysis, and property explorations of thiolate nanoclusters.…”

Understanding a ligand's effects on intra-cluster and inter-cluster assembly

“…24,25 In addition, surface ligands as one of the crucial factors driving the self-assembly of NCs provide an excellent opportunity to develop cluster superstructures. [26][27][28][29][30][31][32][33][34] Driving forces of ligand interactions, such as hydrogen bonding, C-H⋯π/π-π interactions, dipolar interactions, van der Waals interactions, etc., can induce this self-assembly in noble metal nanoparticles. 35,36 Furthermore, such interactions also serve essential roles in the lattice arrangements of the clusters.…”