Title

NMR Studies of the Kinetics of Homogeneously Catalyzed Hydrogénations Using Parahydrogen Induced Polarization at Variable Pressure

Abstract

Quantitative evaluation of Parahydrogen Induced Polarization (PHIP) experiments provides for the determination of kinetic data of homogeneously catalyzed hydrogénations. Especially developed NMR probes facilitate investigations at reproducible reaction conditions and constant hydrogénation rates. Rate equations, describing the experimentally achieved steady state kinetics, are used to determine the pressure dependent ratio between free and complexed catalyst in the reactive solution during the hydrogénation. A method is presented to determine the rate constants of the catalytic cycle of such hydrogénations, which follow the hydride route.

Department(s)

Chemistry

Keywords and Phrases

CIDNP; Hydrogenation reactions; Parahydrogen; PHIP

International Standard Serial Number (ISSN)

09429352

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1993 Oldenbourg Wissenschaftsverlag GmbH, All rights reserved.


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