Synthesis and Characterization of Gold Nanoparticles with Surface Ligands Derived from a Primary Phosphine

@article{Stefanescu2008SynthesisAC,
  title={Synthesis and Characterization of Gold Nanoparticles with Surface Ligands Derived from a Primary Phosphine},
  author={Diana M. Stefanescu and David S Glueck and Ren{\'e}e Siegel and Roderick E Wasylishen},
  journal={Journal of Cluster Science},
  year={2008},
  volume={19},
  pages={445-458}
}
Reduction of HAuCl4 · 3H2O with NaBH4 in THF/H2O in the presence of the primary phosphine PH2Mes* (Mes* = 2,4,6-(t-Bu)3C6H2) gave a mixture of ca. 1.3 nm diameter gold nanoparticles (1) and the known oligomers [Au(PHMes*)]n (2). Nanoclusters 1 might contain phosphido (PHMes*) or phosphinidene (PMes*) surface ligands, or both; they were characterized by elemental analysis, TGA, XPS, TEM, NMR, IR, and UV–Vis spectroscopies, and by their reactions with dodecanethiol, which gave PH2Mes*. Solid… CONTINUE READING