Formation of gold colloids using thioether derivatives as stabilizing ligands

Xue Mei Li, Menno R. De Jong, Kazuhiko Inoue, Seiji Shinkai, Jurriaan Huskens, David N. Reinhoudt

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84 Citations (Scopus)

Abstract

Thioethers were used as adsorbates for preparing gold nanoparticles. Different thioether derivatives having from 1 to 4 thioether functionalities were synthesized. Colloids were prepared in a two-phase system, and characterized by 1H NMR and transmission electron microscopy (TEM). The stability of colloids protected by thioethers increases with the number of ligands per molecule. Monothioethers need longer chain lengths or costabilization by (oct)4NBr in order to give stable, redispersible gold colloids. Gold colloids stabilized by the bis(thioether) 5 could not be redispersed after precipitation. Colloids stabilized by the tris(thioether) 6 were only formed at elevated temperature (60°C) indicating the need of chain reorientation for attaining stable colloids. Tris(thioether) 7 gave stable colloids at room temperature, which could be redispersed even after precipitation. Tetrakis(thioether) 8 gave the smallest particle size and narrowest size distribution.

Original languageEnglish
Pages (from-to)1919-1923
Number of pages5
JournalJournal of Materials Chemistry
Volume11
Issue number7
DOIs
Publication statusPublished - Jul 24 2001
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

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  • Cite this

    Li, X. M., De Jong, M. R., Inoue, K., Shinkai, S., Huskens, J., & Reinhoudt, D. N. (2001). Formation of gold colloids using thioether derivatives as stabilizing ligands. Journal of Materials Chemistry, 11(7), 1919-1923. https://doi.org/10.1039/b101686p