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Synthesis and EPR and ENDOR investigations of Coppinger's radical with perdeuteriated tert ‐butyl groups
Author(s) -
von Gersdorff J.,
Kirste B.,
Kurreck H.
Publication year - 1986
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260241211
Subject(s) - chemistry , electron paramagnetic resonance , radical , hyperfine structure , hyperfine coupling , spectral line , coupling constant , crystallography , nuclear magnetic resonance , medicinal chemistry , organic chemistry , atomic physics , physics , astronomy , particle physics
The synthesis of Coppinger's radical (galvinoxyl) with perdeuteriated tert ‐butyl groups is described. Its EPR spectrum exhibits markedly decreased line widths (0.015 mT) compared with the unlabelled radical (0.039 mT). The correspondingly higher resolution allows a complete analysis of the 13 C hyperfine coupling constants. A comparison of the EPR and ENDOR spectra of unlabelled and of two selectively deuteriated Coppinger's radicals is given.