Work

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

Year: 2013

Type: article

Abstract: 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.

Source: Journal of the American Chemical Society

DOI: 10.1021/ja410747g

Authors: Manoja K. Samantaray, Emmanuel Callens, Edy Abou-Hamad, Aaron J. Rossini, Cory M. Widdifield, Raju Dey, Lyndon Emsley, Jean-Marie Basset

Institutions: King Abdullah University of Science and Technology, Lyon 1 Université, École Normale Supérieure de Lyon, Centre National de la Recherche Scientifique, Université de Lyon, Institut des Sciences Analytiques, Centre de RMN à Très Hauts Champs de Lyon

Language: English

Topic: Organometallic Complex Synthesis and Catalysis

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2016100910

FWCI: 4.403

Cites: 55

Cited by: 86

Related to: 10