Abstract

Ruthenium-C 60 compounds were prepared by reaction of Ru 3(CO) 12 with C 60 in refluxing toluene. The resulting compounds were found to be insoluble air-stable solids which consist of an amorphous matrix embedding small ruthenium metal particles of an average size of 2–5 nm. Furthermore, the presence of unreacted C 60, small amounts of toluene and a residual CO-ligand sphere in ruthenium-C 60 was found. The catalytic activity of ruthenium-C 60 compounds at different temperatures was shown in prototype reactions like the liquid-phase hydrogenation of cyclohexene at 300 K or the hydrogenation of CO in the Fischer-Tropsch synthesis at 500 K.

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