Silica-supported tungsten carbynes (≡SiO)xW(≡CH)(Me)y (x = 1, y = 2; X = 2, y = 1): New efficient catalysts for alkyne cyclotrimerization

Handle URI:
http://hdl.handle.net/10754/564064
Title:
Silica-supported tungsten carbynes (≡SiO)xW(≡CH)(Me)y (x = 1, y = 2; X = 2, y = 1): New efficient catalysts for alkyne cyclotrimerization
Authors:
Riache, Nassima; Déry, Alexandre; Callens, Emmanuel; Poater, Albert; Samantaray, Manoja; Dey, Raju ( 0000-0001-6271-8518 ) ; Hong, Jinhua; Li, Kun; Cavallo, Luigi ( 0000-0002-1398-338X ) ; Basset, Jean-Marie ( 0000-0003-3166-8882 )
Abstract:
The activity of silica-supported tungsten carbyne complexes (≡SiO)xW(≡CH)(Me)y (x = 1, y = 2; x = 2, y = 1) toward alkynes is reported. We found that they are efficient precatalysts for terminal alkyne cyclotrimerization with high TONs. We also demonstrate that this catalyst species is active for alkyne cyclotrimerization without the formation of significant alkyne metathesis products. Additional DFT calculations highlight the importance of the W coordination sphere in supporting this experimental behavior.
KAUST Department:
KAUST Catalysis Center (KCC); Physical Sciences and Engineering (PSE) Division; Advanced Nanofabrication, Imaging and Characterization Core Lab; Chemical Science Program; Core Labs
Publisher:
American Chemical Society (ACS)
Journal:
Organometallics
Issue Date:
23-Feb-2015
DOI:
10.1021/om500684e
Type:
Article
ISSN:
02767333
Sponsors:
Research reported in this publication was supported by the King Abdullah University of Science and Technology. A.P. thanks the Spanish MINECO for a Ramon y Cajal contract (RYC-2009-05226) and the European Commission for a Career Integration Grant (CIG09-GA-2011-293900).
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorRiache, Nassimaen
dc.contributor.authorDéry, Alexandreen
dc.contributor.authorCallens, Emmanuelen
dc.contributor.authorPoater, Alberten
dc.contributor.authorSamantaray, Manojaen
dc.contributor.authorDey, Rajuen
dc.contributor.authorHong, Jinhuaen
dc.contributor.authorLi, Kunen
dc.contributor.authorCavallo, Luigien
dc.contributor.authorBasset, Jean-Marieen
dc.date.accessioned2015-08-03T12:30:29Zen
dc.date.available2015-08-03T12:30:29Zen
dc.date.issued2015-02-23en
dc.identifier.issn02767333en
dc.identifier.doi10.1021/om500684een
dc.identifier.urihttp://hdl.handle.net/10754/564064en
dc.description.abstractThe activity of silica-supported tungsten carbyne complexes (≡SiO)xW(≡CH)(Me)y (x = 1, y = 2; x = 2, y = 1) toward alkynes is reported. We found that they are efficient precatalysts for terminal alkyne cyclotrimerization with high TONs. We also demonstrate that this catalyst species is active for alkyne cyclotrimerization without the formation of significant alkyne metathesis products. Additional DFT calculations highlight the importance of the W coordination sphere in supporting this experimental behavior.en
dc.description.sponsorshipResearch reported in this publication was supported by the King Abdullah University of Science and Technology. A.P. thanks the Spanish MINECO for a Ramon y Cajal contract (RYC-2009-05226) and the European Commission for a Career Integration Grant (CIG09-GA-2011-293900).en
dc.publisherAmerican Chemical Society (ACS)en
dc.titleSilica-supported tungsten carbynes (≡SiO)xW(≡CH)(Me)y (x = 1, y = 2; X = 2, y = 1): New efficient catalysts for alkyne cyclotrimerizationen
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.contributor.departmentChemical Science Programen
dc.contributor.departmentCore Labsen
dc.identifier.journalOrganometallicsen
dc.contributor.institutionDepartament de Química, Universitat de Girona, Campus de MotiliviGirona, Spainen
kaust.authorRiache, Nassimaen
kaust.authorCallens, Emmanuelen
kaust.authorSamantaray, Manojaen
kaust.authorDey, Rajuen
kaust.authorLi, Kunen
kaust.authorCavallo, Luigien
kaust.authorBasset, Jean-Marieen
kaust.authorDéry, Alexandreen
kaust.authorPoater, Alberten
kaust.authorHong, Jinhuaen
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