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

Hidehiro Sakurai, Hironori Tsunoyama, Tatsuya Tsukuda

Research output: Contribution to journalArticle

86 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

Fingerprint

Oxidative Coupling
Molecular oxygen
Nanoclusters
nanoclusters
Catalysis
Gold
Adsorption
Potassium
Catalyst activity
Catalytic Domain
potassium
Air
gold
Oxygen
Catalysts
Water
catalysis
catalytic activity
catalysts
adsorption

Keywords

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

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Materials Science (miscellaneous)
  • Materials Chemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Biochemistry

Cite this

Oxidative homo-coupling of potassium aryltrifluoroborates catalyzed by gold nanocluster under aerobic conditions. / Sakurai, Hidehiro; Tsunoyama, Hironori; Tsukuda, Tatsuya.

In: Journal of Organometallic Chemistry, Vol. 692, No. 1-3, 01.01.2007, p. 368-374.

Research output: Contribution to journalArticle

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AB - 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.

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