The significance of bromide in the Brust–Schiffrin synthesis of thiol protected gold nanoparticles

Abstract

The mechanism of the two-phase Brust–Schiffrin synthesis of alkane thiol protected metal nanoparticles has been shown to be highly sensitive to the precursor species and reactant conditions.

Thiolate‐Protected Metal Nanoclusters: Recent Development in Synthesis, Understanding of Reaction, and Application in Energy and Environmental Field

“…revealed in 2017 using X‐ray absorption fine structure (XAFS) analysis and electrochemical measurement that the intermediates need to be [Au(I)Br 2 ] − to synthesize size‐controlled chalcogenolate‐protected Au n NCs in high yield. [ 237 ]…”

Unravelling the 2D self-assembly of Fmoc-dipeptides at fluid interfaces

“…The cysteine residue of the Fmoc-CF was used as a chemical linker to the Au nanoparticles via thiol chemistry, see scheme 1. 52 The Au nanoparticles were attached to the surface of the Fmoc-CF supramolecular structures as a dense monolayer, with certain regions showing an additional layer of nanoparticles, see Figure 6. The supramolecular structures of Fmoc-CF showed an average thickness of 1.0±0.5 μm, in agreement with the BAM pictures, see above.…”

Synthesis and Characterization of Gold Silyl Compounds with Different Phosphine or Phosphite Groups for Reduction Reactions

“…[2] The synthesis of metalloid gold clusters very often includes thiophenyl groups as sulfur ligands. [7][8][9]11,12] On this ground the established synthesis are mostly based on trial and error, leading to partly unusual experimental procedures. Even though, Brust et al introduced a straightforward method to prepare robust solutions of gold nanoparticles stabilized by sulfur ligands in 1994, [10] it took more than a decade until the first huge metalloid gold cluster with sulfur ligands, Au 102 -(p-MBA) 44 (p-MBA = p-mercaptobenzoic acid), could be structurally characterized via X-ray diffraction.…”