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Journal Article

13C- and proton-ENDOR studies of 13C-labelled organic radicals

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Zimmermann,  Herbert
Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society;
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;
Zimmermann Group, Max Planck Institute for Medical Research, Max Planck Society;
Emeritus Group Biophysics, Max Planck Institute for Medical Research, Max Planck Society;

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Citation

Fey, H., Lubitz, W., Zimmermann, H., Plato, M., Möbius, K., & Biehl, R. (1978). 13C- and proton-ENDOR studies of 13C-labelled organic radicals. Zeitschrift für Naturforschung, A: Physical Sciences, 33(5), 514-522. doi:10.1515/zna-1978-0502.


Cite as: http://hdl.handle.net/21.11116/0000-0001-28F2-1
Abstract
As part of a systematic non-proton ENDOR-in-solution study results are reported for 13C in several isotopically enriched model compounds. Methods for synthesizing these labelled compounds are also presented. The optimum 13C ENDOR temperatures are found to be considerably higher than for protons on account of the larger hyperfine anisotropy. Cross relaxation effects are used to determine rotational correlation times. The isotropic 13C hyperfine couplings are in satisfactory agreement with INDO results