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

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

doi:10.1021/ja410747g

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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 article

Peer reviewed

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

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

Journal of the American Chemical Society, Vol.136(3), pp.1054-1061

22/01/2014

DOI: https://doi.org/10.1021/ja410747g

PMID: 24369727

Abstract

Chemistry

Chemistry, Multidisciplinary

Physical Sciences

Science & Technology

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 degrees C, demonstrating the stabilizing effect of immobilization of the molecular complex. Above 70 degrees C the grafted complex converts into the two methylidyne surface complexes [( SiO-)W( CH)Me-2] and [( SiO-)(2)W( CH)Me]. All of these silica-supported complexes are active precursors for propane metathesis reactions.

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Title: 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
Creators - without role: Manoja K. Samantaray - King Abdullah University of Science and Technology
Emmanuel Callens - King Abdullah University of Science and Technology
Edy Abou-Hamad - King Abdullah University of Science and Technology
Aaron J. Rossini - Institute of Analytical Sciences
Cory M. Widdifield - Institute of Analytical Sciences
Raju Dey - King Abdullah University of Science and Technology
Lyndon Emsley - Institute of Analytical Sciences
Jean-Marie Basset - King Abdullah University of Science and Technology
Publication Details: Journal of the American Chemical Society, Vol.136(3), pp.1054-1061
Publisher: Amer Chemical Soc
Number of pages: 8
Grant note: PIIF-GA-2010-274574 / EU Marie-Curie IIF fellowship Natural Sciences and Engineering Council of Canada (NSERC); Natural Sciences and Engineering Research Council of Canada (NSERC) King Abdullah University of Science and Technology; King Abdullah University of Science & Technology
Identifiers: 9943743208331
Academic Unit: King Abdullah University of Science & Technology
Language: English
Resource Type: Journal article