Synonyms:Colloid, Gold;Colloidal Gold;Gold Colloid;Gold, Colloidal
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There total 917 articles about Gold which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:
Reference yield: 30.0%
Reference yield:
Reference yield:
sodium tetrachloroaurate dihydrate
(trimethylphosphine)gold(I) chloride
bis(triphenylphosphane)iminium(pentafluorophenyl)chlorogold(I)
The research focuses on the design, self-assembly, and switchable wettability of hydrophobic, hydrophilic, and Janus dendritic ligand-gold nanoparticle hybrid materials. The study involves the synthesis of dendritic ligands with varying surface groups, their grafting onto gold nanoparticles (Au NPs), and investigation of the effects on self-assembly behavior and surface polarity. The ligand synthesis utilized a flexible strategy to introduce dendritic end groups responsible for surface polarity and colloidal properties, as well as specific surface NPs binding groups. Techniques such as transmission electron microscopy (TEM), UV-vis spectroscopy, and small-angle X-ray scattering (SAXS) were employed to study the resulting NP-dendron hybrids. The experiments revealed that by controlling the solvent evaporation rate during self-assembly, the dendronized Au hybrids could self-organize into highly ordered thin films with close-packed arrays of NPs, where interparticle separation varied with dendritic generation and end group chemistry. Additionally, contact angle measurements and colloidal observations highlighted the dependence of NP surface polarity on dendron end-group and generation, with the Janus dendron exhibiting controlled surface wetting and a surface polarity memory effect.
The research focuses on the synthesis and characterization of high-nuclearity mixed-metal carbonyl clusters containing iridium, ruthenium, and gold. The purpose of the study is to explore the formation of these complex clusters and understand their structural properties. The researchers synthesized three main clusters: [Ir7Ru3(CO)23], [Ir7Ru3(CO)23(AuPPh3)], and [Ir6Ru3(CO)21(AuPPh3)]. The process involved using [PPh4]2[Ir6(CO)15] as a starting material and reacting it with [Ru3(CO)12] in the presence of p-toluenesulfonic acid to form the initial cluster. Further reactions with [AuCl(PPh3)] and AgOSO2CF3 were used to modify the cluster by adding gold ligands. The study concluded that these clusters exhibit unique structural features, such as a tetrahedrally capped octahedral iridium core, and the ability to incorporate gold ligands while maintaining the cluster framework.
The research explores a novel gold(I)-catalyzed tandem reaction to synthesize highly substituted benzene derivatives from 1,3-hexadien-5-ynes. The purpose of the study was to develop a regioselective method for synthesizing these complex aromatic compounds using readily available starting materials. The researchers used gold complexes, specifically Ph3PAuNTf2 and XphosAuNTf2, as catalysts in dichloromethane solvent. The reaction involves an initial cyclization followed by a selective Wagner-Meerwein shift, where the migration preference is determined by the ability to stabilize a positive charge. The study concluded that this tandem cyclization-migration sequence is highly versatile, allowing for various substituents at different positions of the starting dienyne, and exhibits complete selectivity in the migration step. This method enables the regioselective synthesis of pentasubstituted benzenes with up to five different substituents, making it a valuable approach for creating complex aromatic structures.
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