Oxidative homo-coupling of potassium aryltrifluoroborates catalyzed by gold nanocluster under aerobic conditions

Hidehiro Sakurai, Hironori Tsunoyama, Tatsuya Tsukuda

Research output: Contribution to journalArticle

91 Citations (Scopus)

Abstract

Gold(0) nanoclusters, stabilized by poly(N-vinyl-2-pyrrolidone) (Au:PVP-n), catalyzed the oxidative homo-coupling reaction of potassium aryltrifluoroborate in water under air. Catalytic activity was dependent on the size of clusters. The smallest cluster Au:PVP-1 (dav = 1.3 ± 0.3 nm) gave the highest activity, while Au:PVP-7 (dav = 9.5 ± 1.0 nm) did not catalyze the homo-coupling. The catalyst was reusable for several times. Positively charged surface on the Au cluster, generated by the adsorption of molecular oxygen, would be the active site of the catalysis.

Original languageEnglish
Pages (from-to)368-374
Number of pages7
JournalJournal of Organometallic Chemistry
Volume692
Issue number1-3
DOIs
Publication statusPublished - 2007 Jan 1
Externally publishedYes

Keywords

  • Aerobic oxidation
  • Aryltrifluoroborate
  • Gold nanocluster
  • Homo-coupling

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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