Get access

Design and Application of a Hybrid Material Featuring Well-Defined, Tuneable Grafting Sites for Supported Catalysis.

Authors

  • Dr. Nicolas Popoff,

    1. C2P2, team COMS (CNRS-UMR 5265), Université Lyon 1, ESCPE Lyon, 43 Boulevard du 11 Novembre 1918, 69626 Villeurbanne Cedex (France), Fax: (+33) 472431795
    Search for more papers by this author
  • Dr. Jeff Espinas,

    1. C2P2, team COMS (CNRS-UMR 5265), Université Lyon 1, ESCPE Lyon, 43 Boulevard du 11 Novembre 1918, 69626 Villeurbanne Cedex (France), Fax: (+33) 472431795
    Search for more papers by this author
  • Dr. Jérémie Pelletier,

    1. C2P2, team COMS (CNRS-UMR 5265), Université Lyon 1, ESCPE Lyon, 43 Boulevard du 11 Novembre 1918, 69626 Villeurbanne Cedex (France), Fax: (+33) 472431795
    Search for more papers by this author
  • Dr. Kai C. Szeto,

    1. C2P2, team COMS (CNRS-UMR 5265), Université Lyon 1, ESCPE Lyon, 43 Boulevard du 11 Novembre 1918, 69626 Villeurbanne Cedex (France), Fax: (+33) 472431795
    Search for more papers by this author
  • Dr. Jean Thivolle-Cazat,

    1. C2P2, team COMS (CNRS-UMR 5265), Université Lyon 1, ESCPE Lyon, 43 Boulevard du 11 Novembre 1918, 69626 Villeurbanne Cedex (France), Fax: (+33) 472431795
    Search for more papers by this author
  • Dr. Laurent Delevoye,

    1. UCCS (CNRS-UMR 8181), Université Lille Nord de France, USTL, 59652 Villeneuve d'Ascq (France)
    Search for more papers by this author
  • Dr. Régis M. Gauvin,

    Corresponding author
    1. UCCS (CNRS-UMR 8181), Université Lille Nord de France, USTL, 59652 Villeneuve d'Ascq (France)
    • Régis M. Gauvin, UCCS (CNRS-UMR 8181), Université Lille Nord de France, USTL, 59652 Villeneuve d'Ascq (France)

      Mostafa Taoufik, C2P2, team COMS (CNRS-UMR 5265), Université Lyon 1, ESCPE Lyon, 43 Boulevard du 11 Novembre 1918, 69626 Villeurbanne Cedex (France), Fax: (+33) 472431795

    Search for more papers by this author
  • Dr. Mostafa Taoufik

    Corresponding author
    1. C2P2, team COMS (CNRS-UMR 5265), Université Lyon 1, ESCPE Lyon, 43 Boulevard du 11 Novembre 1918, 69626 Villeurbanne Cedex (France), Fax: (+33) 472431795
    • Régis M. Gauvin, UCCS (CNRS-UMR 8181), Université Lille Nord de France, USTL, 59652 Villeneuve d'Ascq (France)

      Mostafa Taoufik, C2P2, team COMS (CNRS-UMR 5265), Université Lyon 1, ESCPE Lyon, 43 Boulevard du 11 Novembre 1918, 69626 Villeurbanne Cedex (France), Fax: (+33) 472431795

    Search for more papers by this author

Abstract

A new material based on amorphous silica, and featuring a well-defined phenolic functionality was prepared in two simple steps by using commercially available, cheap reagents. Silica was first reacted with aluminum isobutyl etherate to yield an aluminum isobutyl site [(≡SiO)2Al(iBu)(Et2O)], which then selectively reacted with a hydroquinone spacer to yield [(≡SiO)2(AlO[BOND]C6X4[BOND]OH)(Et2O)] (X=H or F). This support material was then used to tether the organometallic tungstenocarbyne complex [W(≡CtBu)(CH2tBu)3] to yield the surface species [(≡SiO)2(AlO[BOND]C6X4[BOND]O-W(≡CtBu)(CH2tBu)2(Et2O)] (X=H or F). Both H- and F-containing species were fully characterized, and their activities in the self-metathesis reaction of propene to ethylene and 2-butenes were found to be two and three times higher, respectively, than the activity of the corresponding tungstenocarbyne complex directly grafted onto silica.

Get access to the full text of this article

Ancillary