Preparation and Catalytic Function of Substituted Polyacetylenes Coordinated to Palladium Nanoclusters

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  • Masahide Goto
    Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
  • Marina Nakaoka
    Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
  • Tatsuki Nagata
    Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
  • Takeyuki Suzuki
    Comprehensive Analysis Center, SANKEN, Osaka University
  • Hideya Kawasaki
    Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
  • Yasushi Obora
    Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
  • Hiromitsu Sogawa
    Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
  • Fumio Sanda
    Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University

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<p>Poly(4-ethynylaniline) [poly(1)] coordinated to palladium nanoclusters (Pd NCs) were prepared. The coordination of Pd NCs was confirmed by X-ray photoelectron spectroscopy and scanning transmission electron microscopy. Pd NCs were coordinated with the benzene rings as well as amino groups of poly(1). Pd NCs were partly coordinated with the polymers, maintaining their original size to form the aggregates with sizes of several tens to hundreds nanometers. Pd NCs coordinated with poly(1) efficiently served as catalysts for the Mizoroki-Heck and Suzuki-Miyaura cross-coupling reactions.</p>

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