NMR Studies of the Kinetics of Homogeneously Catalyzed Hydrogénations Using Parahydrogen Induced Polarization at Variable Pressure
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.
K. Woelk and J. Bargon, "NMR Studies of the Kinetics of Homogeneously Catalyzed Hydrogénations Using Parahydrogen Induced Polarization at Variable Pressure," Zeitschrift fur Physikalische Chemie, vol. 182, no. Part_1_2, pp. 155-165, Oldenbourg Wissenschaftsverlag GmbH, Jan 1993.
The definitive version is available at http://dx.doi.org/10.1524/zpch.1993.182.Part_1_2.155
Keywords and Phrases
CIDNP; Hydrogenation reactions; Parahydrogen; PHIP
International Standard Serial Number (ISSN)
Article - Journal
© 1993 Oldenbourg Wissenschaftsverlag GmbH, All rights reserved.