Effect of Support on Metathesis of n-Decane: Drastic Improvement in Alkane Metathesis with WMe5 Linked to Silica-Alumina

Handle URI:
http://hdl.handle.net/10754/564103
Title:
Effect of Support on Metathesis of n-Decane: Drastic Improvement in Alkane Metathesis with WMe5 Linked to Silica-Alumina
Authors:
Samantaray, Manoja; Dey, Raju ( 0000-0001-6271-8518 ) ; Abou-Hamad, Edy; Hamieh, Ali Imad Ali ( 0000-0002-5218-3617 ) ; Basset, Jean-Marie ( 0000-0003-3166-8882 )
Abstract:
[WMe6] (1) supported on the surface of SiO2-Al2O3(500) (2) has been extensively characterized by solid-state NMR spectroscopy, elemental analysis, and gas quantification, which clearly reveal the formation of a mixture of monopodal and bipodal species with the migration of methyl from W to Al. The supported species SiO2-Al2O3(500) (2) transformed at 120°C into two types of carbynic centers, one of which is cationic and the other neutral. These species are very efficient for the metathesis of n-decane. Comparison with already-synthesized neutral bipodal tungsten indicates that the high increase in activity is due to the cationic character of the grafted tungsten.
KAUST Department:
KAUST Catalysis Center (KCC); Physical Sciences and Engineering (PSE) Division; Chemical Science Program
Publisher:
Wiley-Blackwell
Journal:
Chemistry - A European Journal
Issue Date:
11-Mar-2015
DOI:
10.1002/chem.201406033
Type:
Article
ISSN:
09476539
Sponsors:
The authors acknowledge the KAUST Nuclear Magnetic Resonance Core Lab and technical assistance from Dr. Kazuo Yamauchi. The authors also thank Professor Lyndon Emsley, Dr. Emmanuel Callens, and Dr. Nassima Riache for fruitful discussions. This work was supported by funds from King Abdullah University of Science and Technology.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorSamantaray, Manojaen
dc.contributor.authorDey, Rajuen
dc.contributor.authorAbou-Hamad, Edyen
dc.contributor.authorHamieh, Ali Imad Alien
dc.contributor.authorBasset, Jean-Marieen
dc.date.accessioned2015-08-03T12:32:17Zen
dc.date.available2015-08-03T12:32:17Zen
dc.date.issued2015-03-11en
dc.identifier.issn09476539en
dc.identifier.doi10.1002/chem.201406033en
dc.identifier.urihttp://hdl.handle.net/10754/564103en
dc.description.abstract[WMe6] (1) supported on the surface of SiO2-Al2O3(500) (2) has been extensively characterized by solid-state NMR spectroscopy, elemental analysis, and gas quantification, which clearly reveal the formation of a mixture of monopodal and bipodal species with the migration of methyl from W to Al. The supported species SiO2-Al2O3(500) (2) transformed at 120°C into two types of carbynic centers, one of which is cationic and the other neutral. These species are very efficient for the metathesis of n-decane. Comparison with already-synthesized neutral bipodal tungsten indicates that the high increase in activity is due to the cationic character of the grafted tungsten.en
dc.description.sponsorshipThe authors acknowledge the KAUST Nuclear Magnetic Resonance Core Lab and technical assistance from Dr. Kazuo Yamauchi. The authors also thank Professor Lyndon Emsley, Dr. Emmanuel Callens, and Dr. Nassima Riache for fruitful discussions. This work was supported by funds from King Abdullah University of Science and Technology.en
dc.publisherWiley-Blackwellen
dc.subjectAlkanesen
dc.subjectMetathesisen
dc.subjectSolid-state NMR spectroscopyen
dc.subjectSupported catalystsen
dc.subjectTungstenen
dc.titleEffect of Support on Metathesis of n-Decane: Drastic Improvement in Alkane Metathesis with WMe5 Linked to Silica-Aluminaen
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical Science Programen
dc.identifier.journalChemistry - A European Journalen
kaust.authorSamantaray, Manojaen
kaust.authorDey, Rajuen
kaust.authorAbou-Hamad, Edyen
kaust.authorBasset, Jean-Marieen
kaust.authorHamieh, Ali Imad Alien
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