2026-04-17T20:19:05Zhttps://recercat.cat/oai/requestoai:recercat.cat:10256/132992024-06-18T13:52:17Zcom_2072_452955com_2072_2054col_2072_453073
RECERCAT
author
Riache, Nassima
author
Dery, Alexandre
author
Callens, Emmanuel
author
Poater Teixidor, Albert
author
Samantaray, Manoja K.
author
Dey, Raju
author
Hong, Jinhua
author
Li, Kun
author
Cavallo, Luigi
author
Basset, Jean-Marie
2024-06-18T13:52:17Z
2024-06-18T13:52:17Z
info:eu-repo/date/embargoEnd/2026-01-01info:eu-repo/date/embargoEnd/2026-01-012015-02-23
http://hdl.handle.net/10256/13299
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 behaviorA.P. thanks the Spanish MINECO for a Ramón y Cajal contract (RYC-2009-05226) and the European Commission for a Career Integration Grant (CIG09-GA-2011-293900)
Tots els drets reservats info:eu-repo/semantics/embargoedAccess
Funcional de densitat, Teoria del
Density functionals
Compostos organometàl·lics
Organometallic compounds
Catalitzadors organometàl·lics
Organometallic catalysts
Silica-Supported Tungsten Carbynes (≡SiO)xW(≡CH)(Me)y (x = 1, y = 2; x = 2, y = 1): New Efficient Catalysts for Alkyne Cyclotrimerization
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion