The neutral semiquinone radical obtained by photolysis of naphthazarin in THF exhibits linewidth alternation. The temperature dependence of the ESR spectrum has been interpreted in terms of a restricted rotation of the hydroxyl groups with and activation energy of 22.7 kJ/mol.
ESR studies of free radicals derived from hydroxyquinones. Naphthazarin revisited: twentyfive years of alternating linewidth effect
Alberti A
1988
Abstract
The neutral semiquinone radical obtained by photolysis of naphthazarin in THF exhibits linewidth alternation. The temperature dependence of the ESR spectrum has been interpreted in terms of a restricted rotation of the hydroxyl groups with and activation energy of 22.7 kJ/mol.File in questo prodotto:
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