Abstract
Homogeneous hydrogenations with ortho- or para-enriched hydrogen result in strongly enhanced 1H-NMR-polarization signals due to symmetry breaking during the reactions. Polarization is observed only, if the transferred atoms stem from the same molecule (“pair correlation”). The polarization pattern reflects the reaction path, e.g. the reaction of two different educts leading to the same product shows different polarization spectra.
Examples given include hydrogenation of certain alkines to alkenes as well as alkenes to alkanes using organometallic rhodium catalysts.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
C. R. Bowers, D. P. Weitekamp, Phys.Rev.Lett. 57, 2645–8 (1986).
J. Bargon, J. Kandels, K. Woelk, Angew.Chem.Int.Ed.Engl. 29, 58–9 (1990).
R. R. Schrock, J. A. Osborn, J.Am.Chem.Soc. 98, 2134–43, 2143–7, 4450–5 (1976).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1990 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Bargon, J., Kandels, J., Kating, P., Thomas, A., Woelk, K. (1990). NMR-Investigations of Homogeneous Hydrogenation Reactions using Para Hydrogen. In: Mehring, M., von Schütz, J.U., Wolf, H.C. (eds) 25th Congress Ampere on Magnetic Resonance and Related Phenomena. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-76072-3_98
Download citation
DOI: https://doi.org/10.1007/978-3-642-76072-3_98
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-53136-4
Online ISBN: 978-3-642-76072-3
eBook Packages: Springer Book Archive