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dc.contributor.authorSamantaray, Manoja
dc.contributor.authorCallens, Emmanuel
dc.contributor.authorAbou-Hamad, Edy
dc.contributor.authorRossini, Aaron J.
dc.contributor.authorWiddifield, Cory M.
dc.contributor.authorDey, Raju
dc.contributor.authorEmsley, Lyndon
dc.contributor.authorBasset, Jean-Marie
dc.date.accessioned2015-08-03T11:46:20Z
dc.date.available2015-08-03T11:46:20Z
dc.date.issued2014-01-10
dc.identifier.citationSamantaray, M. K., Callens, E., Abou-Hamad, E., Rossini, A. J., Widdifield, C. M., Dey, R., … Basset, J.-M. (2014). 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, 136(3), 1054–1061. doi:10.1021/ja410747g
dc.identifier.issn00027863
dc.identifier.pmid24369727
dc.identifier.doi10.1021/ja410747g
dc.identifier.urihttp://hdl.handle.net/10754/563348
dc.description.abstractThe 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. © 2013 American Chemical Society.
dc.description.sponsorshipThe authors acknowledge the KAUST Nuclear Magnetic Resonance Core Lab and technical assistance of Dr. Kazuo Yamauchi. The authors also thank Dr. Nassima Riache for her fruitful discussions. Mr. Benoit Vincenti is thanked for inert-atmosphere sample preparation prior to solid-state NMR experiments upon 2. A.J.R. acknowledges support from an EU Marie-Curie IIF fellowship (PIIF-GA-2010-274574). C.M.W. acknowledges the Natural Sciences and Engineering Council of Canada (NSERC) for a postdoctoral fellowship. Computational resources for DFT calculations were provided by the Pole Scientifique de Modelisation Numerique (PSMN). This work was supported by funds from King Abdullah University of Science and Technology.
dc.publisherAmerican Chemical Society (ACS)
dc.titleWMe6 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
dc.typeArticle
dc.contributor.departmentChemical Science Program
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalJournal of the American Chemical Society
dc.contributor.institutionInstitut de Sciences Analytiques (CNRS, ENS-Lyon, UCB Lyon 1), Université de Lyon, Centre de RMN À Très Hauts Champs, 5 rue de la Doua, 69100 Villeurbanne, France
kaust.personSamantaray, Manoja
kaust.personCallens, Emmanuel
kaust.personAbou-Hamad, Edy
kaust.personDey, Raju
kaust.personBasset, Jean-Marie
kaust.acknowledged.supportUnitKAUST Nuclear Magnetic Resonance Core Lab
dc.date.published-online2014-01-10
dc.date.published-print2014-01-22


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