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In Situ NMR Investigations of Photocatalyzed Hydrogenations with Parahydrogen in the Presence of Metal Carbonyl Compounds of Group 6
Author(s) -
Thomas Angelika,
Haake Mathias,
Grevels FriedrichWilhelm,
Bargon Joachim
Publication year - 1994
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199407551
Subject(s) - spin isomers of hydrogen , photochemistry , chemistry , molecule , metal carbonyl , metal , catalysis , in situ , carbonyl group , hydrogen atom , hydrogen molecule , nuclear magnetic resonance spectroscopy , hydrogen , spectroscopy , polarization (electrochemistry) , photocatalysis , group (periodic table) , medicinal chemistry , stereochemistry , organic chemistry , physics , quantum mechanics
A look behind hydrogenation catalysts : How is the hydrogen molecule bound to the metal atom of a carbonyl complex in the intermediate? Which positions of a substrate molecule are attacked as a result? The course of a photochemical hydrogenation [Eq. (a)] could now be followed for the first time by NMR spectroscopy through nuclear spin polarization effects.