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The activation mechanism of Fe-based olefin metathesis catalysts

Density functional theory calculations have been used to describe the first turnover for olefin metathesis reaction of a homogenous Fe-based catalyst bearing a N-heterocyclic carbene ligand with methoxyethene as a substrate. Equal to conventional Ru-based catalysts, the activation of its Fe congener occurs through a dissociative mechanism, however with a more exothermic reaction energy profile. Predicted upper energy barriers were calculated to be on average ∼2 kcal/mol more beneficial for Fe catalyzed metathesis. Overall, this present computational study emphasises on advantages of Fe-based metathesis and gives a potential recipe for the design of an efficient Fe-based olefin metathesis catalysts

© Chemical Physics Letters, 2014, vol. 610-611, p. 29-32

Elsevier

Autor: Poater Teixidor, Albert
Pump, Eva
Vummaleti, Sai Vikrama Chaitanya
Cavallo, Luigi
Data: 28 agost 2014
Resum: Density functional theory calculations have been used to describe the first turnover for olefin metathesis reaction of a homogenous Fe-based catalyst bearing a N-heterocyclic carbene ligand with methoxyethene as a substrate. Equal to conventional Ru-based catalysts, the activation of its Fe congener occurs through a dissociative mechanism, however with a more exothermic reaction energy profile. Predicted upper energy barriers were calculated to be on average ∼2 kcal/mol more beneficial for Fe catalyzed metathesis. Overall, this present computational study emphasises on advantages of Fe-based metathesis and gives a potential recipe for the design of an efficient Fe-based olefin metathesis catalysts
Format: application/pdf
ISSN: 0009-2614
Accés al document: http://hdl.handle.net/10256/10338
Llenguatge: eng
Editor: Elsevier
Col·lecció: MICINN/PN 2012-2015/RYC-2009-05226
Reproducció digital del document publicat a: http://dx.doi.org/10.1016/j.cplett.2014.06.063
Articles publicats (D-Q)
info:eu-repo/grantAgreement/EC/FP7/293900
És part de: © Chemical Physics Letters, 2014, vol. 610-611, p. 29-32
Drets: Tots els drets reservats
Matèria: Catalitzadors
Catalysts
Metàtesi (Química)
Metathesis (Chemistry)
Funcional de densitat, Teoria del
Density functionals
Polimerització
Polymerization
Títol: The activation mechanism of Fe-based olefin metathesis catalysts
Tipus: info:eu-repo/semantics/article
Repositori: DUGiDocs

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