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Hydrocarbon Chain Growth on V(100) Single‐Crystal Surfaces via Vinyl Intermediates
Author(s) -
Shen Min,
Zaera Francisco
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200802338
Subject(s) - methylene , dehydrogenation , propene , chemistry , hydrocarbon , reaction mechanism , photochemistry , medicinal chemistry , organic chemistry , catalysis
A four‐step mechanism for thermal activation of methylene species on V(100) surfaces to generate propene is identified experimentally (see scheme). Dehydrogenation of methylene to methylidyne and coupling with another methylene group gives a vinyl intermediate, which reacts with a methylene group to form an allyl species, which is finally hydrogenated to propene. This provides evidence for the possible role of vinyl intermediates in Fischer–Tropsch synthesis.