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Synthesis and characterization of a homogeneous and silica supported homoleptic cationic tungsten(vi) methyl complex: application in olefin metathesis

dc.contributor.authorDey, Raju
dc.contributor.authorSamantaray, Manoja
dc.contributor.authorPoater, Albert
dc.contributor.authorHamieh, Ali Imad Ali
dc.contributor.authorKavitake, Santosh Giridhar
dc.contributor.authorAbou-Hamad, Edy
dc.contributor.authorCallens, Emmanuel
dc.contributor.authorEmwas, Abdul-Hamid M.
dc.contributor.authorCavallo, Luigi
dc.contributor.authorBasset, Jean-Marie
dc.date.accessioned2017-01-02T09:28:33Z
dc.date.available2017-01-02T09:28:33Z
dc.date.issued2016
dc.identifier.citationDey R, Samantaray MK, Poater A, Hamieh A, Kavitake S, et al. (2016) Synthesis and characterization of a homogeneous and silica supported homoleptic cationic tungsten(vi) methyl complex: application in olefin metathesis. Chem Commun 52: 11270–11273. Available: http://dx.doi.org/10.1039/c6cc05352a.
dc.identifier.issn1359-7345
dc.identifier.issn1364-548X
dc.identifier.doi10.1039/c6cc05352a
dc.identifier.urihttp://hdl.handle.net/10754/622479
dc.description.abstractA method for the synthesis of a homogeneous cationic tungsten(VI)penta-methyl complex [(WMe5)(+)(C6F5)(3)BMe-] from neutral tungstenhexamethyl (WMe6) and a silica supported cationic tungstentetramethyl complex [( Si-O-)WMe4+ (C6F5)(3)BMe-] from a neutral silica supported tungstenpentamethyl complex [( Si-O-)WMe5] is described. In both cases a direct demethylation using the B(C6F5)(3) reagent was used. The aforesaid complexes were characterized by liquid or solid state NMR spectroscopy. Interestingly, the homogeneous cationic complex [(WMe5)(+)(C6F5)(3)BMe-] shows moderate activity whereas the supported cationic complex [( Si-O-)WMe4+(C6F5)(3)BMe-] exhibits good activity in olefin metathesis reactions.
dc.description.sponsorshipThis work was supported by funds from the King Abdullah University of Science and Technology (KAUST) office of sponsored research (OSR). A. P. thanks the Spanish MINECO for the project CTQ2014-59832-JIN. The authors also thank Dr Nassima Riache for fruitful discussions.
dc.publisherRoyal Society of Chemistry (RSC)
dc.relation.urlhttp://pubs.rsc.org/en/Content/ArticleLanding/2016/CC/C6CC05352A
dc.titleSynthesis and characterization of a homogeneous and silica supported homoleptic cationic tungsten(vi) methyl complex: application in olefin metathesis
dc.typeArticle
dc.contributor.departmentAli I. Al-Naimi Petroleum Engineering Research Center (ANPERC)
dc.contributor.departmentChemical Science Program
dc.contributor.departmentCompetitive Research Funds
dc.contributor.departmentImaging and Characterization Core Lab
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentNMR
dc.contributor.departmentOCRF- Special Academic Partnership
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalChem. Commun.
dc.contributor.institutionInstitut de Quìmica Computacional i Catàlisi, Departament de Quìmica, Universitat de Girona, Campus de Montilivi, Girona, Catalonia, Spain
kaust.personDey, Raju
kaust.personSamantaray, Manoja
kaust.personPoater, Albert
kaust.personHamieh, Ali Imad Ali
kaust.personKavitake, Santosh Giridhar
kaust.personAbou-Hamad, Edy
kaust.personCallens, Emmanuel
kaust.personEmwas, Abdul-Hamid M.
kaust.personCavallo, Luigi
kaust.personBasset, Jean-Marie


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