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

doi:10.1039/b101686p

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

Research output: Contribution to journal › Article › peer-review

87 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 language	English
Pages (from-to)	1919-1923
Number of pages	5
Journal	Journal of Materials Chemistry
Volume	11
Issue number	7
DOIs	https://doi.org/10.1039/b101686p
Publication status	Published - 2001
Externally published	Yes

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Chemistry

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10.1039/b101686p

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title = "Formation of gold colloids using thioether derivatives as stabilizing ligands",

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.",

author = "Li, {Xue Mei} and {De Jong}, {Menno R.} and Kazuhiko Inoue and Seiji Shinkai and Jurriaan Huskens and Reinhoudt, {David N.}",

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doi = "10.1039/b101686p",

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T1 - Formation of gold colloids using thioether derivatives as stabilizing ligands

AU - Li, Xue Mei

AU - De Jong, Menno R.

AU - Inoue, Kazuhiko

AU - Shinkai, Seiji

AU - Huskens, Jurriaan

AU - Reinhoudt, David N.

PY - 2001

Y1 - 2001

N2 - 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.

AB - 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.

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JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

IS - 7

ER -

Formation of gold colloids using thioether derivatives as stabilizing ligands

Abstract

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