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The Detection of PHIP Effects Allows New Insights into the Mechanism of Olefin Isomerisation during Catalytic Hydrogenation
Author(s) -
Viale Alessandra,
Santelia Daniela,
Napolitano Roberta,
Gobetto Roberto,
Dastrù Walter,
Aime Silvio
Publication year - 2008
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200800356
Subject(s) - chemistry , isomerization , olefin fiber , alkyne , catalysis , photochemistry , hydrogen , molecule , metal , spin isomers of hydrogen , organic chemistry
PHIP (parahydrogen‐induced polarisation) effects in the 1 H NMR spectra of the products of Rh‐complex‐catalysed alkyne hydrogenation brings to light the fact that the cis – trans isomerisation of the formed olefin occurs through the formation of a σ‐bonded intermediate stabilised by the reversible addition of a hydrogen molecule at the metal centre. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)