WMe6 Tamed by Silica: ≡Si–O–WMe5 as an Efficient, Well-Defined Species for Alkane Metathesis, Leading to the Observation of a Supported W–Methyl/Methylidyne SpeciesJournal of the American Chemical Society (2013)
The synthesis and full characterization of a well-defined silica-supported ≡Si–O–W(Me)5 species is reported. Under an inert atmosphere, it is a stable material at moderate temperature, whereas the homoleptic parent complex decomposes above −20 °C, demonstrating the stabilizing effect of immobilization of the molecular complex. Above 70 °C the grafted complex converts into the two methylidyne surface complexes [(≡SiO−)W(≡CH)Me2] and [(≡SiO−)2W(≡CH)Me]. All of these silica-supported complexes are active precursors for propane metathesis reactions.
Publication DateDecember 26, 2013
Citation InformationManoja K. Samantaray, Emmanuel Callens, Edy Abou-Hamad, Aaron J. Rossini, et al.. "WMe6 Tamed by Silica: ≡Si–O–WMe5 as an Efficient, Well-Defined Species for Alkane Metathesis, Leading to the Observation of a Supported W–Methyl/Methylidyne Species" Journal of the American Chemical Society Vol. 136 Iss. 3 (2013) p. 1054 - 1061
Available at: http://works.bepress.com/aaron-rossini/13/