The synthesis and electrical transport of ligand-protected Au13 clusters

Abstract

The ligand-protected Au 13 clusters have been synthesized by using meso-2,3-imercaptosuccinic acid as the reducing and stabilizing agent. Transmission electron microscopic analysis shows a size distribution of 1.4 ± 0.6 nm. Optical spectrum shows an absorbance peak at 390 nm. The electrical transport measurement devices are fabricated using the electro-migration method. Coulomb blockade is observed at the temperature of 1.6 K, revealing the formation of the tunneling junction.The Coulomb oscillation's on/off ratio is nearly 5. Three peaks are extracted in the dI/dV data and attributed to the energy levels of Au 13 clusters, gapped by about 60 meV. First principle calculations are carried out to interpret the energy diagram.

Controllable synthesis and electrocatalytic applications of atomically precise gold nanoclusters

“…They found that the product Au 10 nanoclusters had excellent biocompatibility, which had the potential to be applied as future biosensors. Moreover, Me 3 NBH 3 57 and meso-2,3dimercaptosuccinic acid 58 also exhibited mild reducing ability, and they were also used to synthesise atomically precise Au NCs.…”

“…Moreover, Me 3 NBH 3 (ref. 57 ) and meso -2,3-dimercaptosuccinic acid 58 also exhibited mild reducing ability, and they were also used to synthesise atomically precise Au NCs.…”

Interaction potentials from arbitrary multi-particle trajectory data

“…In the case where the force vector, f, is obtained from simulation configurations using a known interaction potential, eqn (10) corresponds to the well-established technique of force matching, [42][43][44][45][46][47][48] which is usually applied to match a coarsegrained pair force model, F(r ij ), to forces generated by a more detailed interaction model. Here, however, we consider a fundamentally different application for eqn (10): can one robustly and accurately calculate a pairwise force model from an experimentally measured set of particle trajectories subject to unknown interparticle interactions?…”

Monoarsine-protected icosahedral cluster [Au13(AsPh3)8Cl4]+: comparative studies on ligand effect and surface reactivity with its stibine analogue

“…, photodynamic catalysis and nano-electronic devices). 34,35 More recently, comparative studies on several new types of Au 13 analogues protected by other pnictines ( e.g. , functionalized diphosphine, 36 phosphinous acid, 37 diarsine, 38 and monostibine 39–41 ) or mimics of pnictine ( N -heterocyclic carbenes) 42–47 have also been extensively made both experimentally and theoretically.…”

“…In this context, the past 15 years have rst witnessed a renewed interest in the typical phosphine-protected Au 13 clusters involving development of new synthetic routes (e.g., HCl-induced convergence), 6,7,22,23 exploration of formation mechanisms, 24,25 tuning of electronic properties (e.g., by heterometal doping [26][27][28][29] ), and optical properties (e.g., NIR emission 6,7,30 and chiroptical activity [31][32][33] ), as well as further expansion of their potential applications (e.g., photodynamic catalysis and nano-electronic devices). 34,35 More recently, comparative studies on several new types of Au 13 analogues protected by other pnictines (e.g., functionalized diphosphine, 36 phosphinous acid, 37 diarsine, 38 and monostibine [39][40][41] ) or mimics of pnictine (N-heterocyclic carbenes) [42][43][44][45][46][47] have also been extensively made both experimentally and theoretically.…”