ESR-Untersuchung zur N-Inversion an freien Radikalen / N-Inversion in Free Radical Molecules Studied by ESR

Bibliographic Details
Authors and Corporations: Fischer, Volker, Bühler, Werner, Scheffler, Klaus
Title: ESR-Untersuchung zur N-Inversion an freien Radikalen / N-Inversion in Free Radical Molecules Studied by ESR
In: Zeitschrift für Naturforschung A, 38, 1983, 5
published:
Walter de Gruyter GmbH
ISSN/ISBN: 1865-7109
0932-0784
Summary:<jats:p>The temperature dependence of the ESR spectra of 4-[(Mono-rsp. Di-organyl-amino)-methyl]- 2.6-di-tert.-butyl-phenoxyls is studied. The observed coalescence behaviour of the hfs-parameters of the methylene protons is interpreted by N-inversion in the amine group. Thus it is shown that the μsec time scale of ESR makes it possible to study these processes near ambient temperatures. Evaluation of rate constants and activation parameters was done by computer simulation of the DESR spectra. Comparing these values with those given by DNMR methods at low temperatures show that the radical state of the molecule has no significant effect on the inversion rate constants.</jats:p>
Type of Resource:E-Article
Source:Walter de Gruyter GmbH (CrossRef)
Language: Undetermined