Synthesis and characterization of a homogeneous and silica supported homoleptic cationic tungsten(VI) methyl complex: Application in olefin metathesis
dc.contributor.author
dc.date.accessioned
2016-11-18T08:05:06Z
dc.date.available
2016-11-18T08:05:06Z
dc.date.issued
2016-01-01
dc.identifier.issn
1359-7345
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dc.description.abstract
A method for the synthesis of a homogeneous cationic tungsten(VI)pentamethyl complex [(WMe5)+(C6F5)3BMe−] from neutral tungstenhexamethyl (WMe6) and a silica supported cationic tungstentetramethyl complex [([triple bond, length as m-dash]Si–O–)WMe4+ (C6F5)3BMe−] from a neutral silica supported tungstenpentamethyl complex [([triple bond, length as m-dash]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)3BMe−] shows moderate activity whereas the supported cationic complex [([triple bond, length as m-dash]Si–O–)WMe4+(C6F5)3BMe−] exhibits good activity in olefin metathesis reactions
dc.description.sponsorship
This 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
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application/pdf
dc.language.iso
eng
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Reaction mechanisms (Chemistry)
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info:eu-repo/grantAgreement/MINECO//CTQ2014-59832-JIN/ES/ESCANEO COMPUTACIONAL DE RELACIONES ESTRUCTURA%2FACTIVIDAD DE CATALIZADORES DE OXIDACION DEL AGUA PARA LA GENERACION DE H2/
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Reproducció digital del document publicat a: http://dx.doi.org/10.1039/c6cc05352a
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© Chemical Communications, 2016, vol. 52, núm. 75, p. 11270-11273
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dc.title
Synthesis and characterization of a homogeneous and silica supported homoleptic cationic tungsten(VI) methyl complex: Application in olefin metathesis
dc.type
info:eu-repo/semantics/article
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info:eu-repo/semantics/embargoedAccess
dc.embargo.terms
Cap
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info:eu-repo/date/embargoEnd/2026-01-01
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info:eu-repo/semantics/publishedVersion
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dc.identifier.eissn
1364-548X