Surface versus molecular siloxy ligands in well-defined olefin metathesis catalysts: [{(RO)3SiO}Mo(=NAr)(=CHtBu)(CH2tBu)]

Frédéric Blanc*, Christophe Copéret, Jean Thivolle-Cazat, Jean-Marie Maurice Basset, Anne Lesage, Lyndon Emsley, Amritanshu Sinha, Richard R. Schrock

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

136 Scopus citations

Abstract

Surface organometallic chemistry: Similar electronic properties of molecular and surface siloxy ligands in 1 m and 1 were revealed by a structural investigation with solid-state NMR spectroscopy and a reactivity study in olefin metathesis. Despite similar initial turnover frequencies, the silica-supported catalyst 1 is more stable than 1 m and allows it to achieve higher turnovers, thus showing the advantage of site isolation on surfaces. (Figure Presented)

Original languageEnglish (US)
Pages (from-to)1216-1220
Number of pages5
JournalAngewandte Chemie - International Edition
Volume45
Issue number8
DOIs
StatePublished - Feb 13 2006

Keywords

  • Carbene ligands
  • Heterogeneous catalysis
  • Metathesis
  • Molybdenum

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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