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1. Nitroxydes 105: cinetique de reduction d'un radical nitroxyde par l'acide ascorbique en presence de β-cyclodextrine

Author

J. Michon, K. U. Ingold, A. Rassat, and C. Ebel

Subjects
Nitroxide mediated radical polymerization, Stereochemistry, Organic Chemistry, Kinetics, Nitroxyl, Buffer solution, Ascorbic acid, Phosphate, Biochemistry, law.invention, chemistry.chemical_compound, chemistry, law, Drug Discovery, Physical chemistry, Electron paramagnetic resonance, Equilibrium constant
Abstract

Summary The equilibrium constant, K, for association of 2,2,5,5-tetramethylpyrrolidine-1-oxyl and β-cyclodextrin has been measured by monitoring by EPR spectroscopy the kinetics of the reduction of nitroxide by the ascorbate anion in the presence of varying concentrations of β-cyclodextrin in phosphate buffered solutions. The values found for K by kinetics are in satisfactory agreement with the values obtained by analysis (spectral simulation) of the high field line of the EPR spectrum under static conditions.

Published
1985

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