ACTIVE FIXED Mo CATALYSTS FOR OLEFIN METATHESIS AND CHEMICAL STATE OF THE ACTIVE SITE

Abstract

Abstract The fixed Mo catalysts with well-defined structures prepared by the facile reactions between Mo(χ-C3H5)4 and acidic OH groups of supports like γ-alumina, silica-alumina and silica, followed by the stoichiometric uptake of H2, O2 or Cl2, were very active for olefin metathesis, where the coordinatively unsaturated tetravalent Mo uniformly populated on the surface was found to be the actual active site.