Metathese des olefines avec les precurseurs zerovalents du tungstene (W(CO)5L, L = CO, PPh3, P(OPh)3, P(n-C4H9)3) associes a C2H5AlCl2 et O2. Une etude infrarouge

J. L. Bilhou*, J. M. Basset

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


W(CO)5L (L = CO, PPh3, P(OPh)3, P(n-C4H9)3) associated with C2H5AlCl2 and molecular oxygen is a highly active metathesis catalyst for acyclic olefins. An infrared investigation of the interaction between the catalytic components indicates firt an acid-base interaction leading to a sol1 1 adduct {A figure is presented} identified with L ≠ CO which is not stable and gives rise to dissociation of the ligand L and formation of the unsaturated zerovalent species W(CO)5. Oxidation to W(CO)4Cl2 then occurs according to a stoichiometry which remains unknown. Mass equilibrium indicates also the formation of non-carbonyl complexes of tungsten, which might be highly unsaturated zerovalent tungsten or highly oxidized tungsten, such as WOCl2 or WCl4.

Original languageFrench
Pages (from-to)395-407
Number of pages13
JournalJournal of Organometallic Chemistry
Issue number3
StatePublished - Jun 7 1977
Externally publishedYes

ASJC Scopus subject areas

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

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