Electron spin resonance studies of free radicals formed from orotic acid
نویسندگان
چکیده
منابع مشابه
MAGNETISATION AND ELECTRON SPIN RESONANCE STUDIES OF TETRAHEDRAL AMORPHOUS CARBON
The magnetisation and electron spin resonance (ESR) spectrum of two specimens of tetrahedral amorphous carbon (ta-C), deposited from a filtered cathodic arc, were measured over a wide temperature range. The magnetisation was found to consist of superparamagnetic, paramagnetic and diamagnetic contributions. The superparamagnetic contribution resembled that recently found in carbon prepared from ...
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In this study, the reactions of electrons with N-acetylproline are investigated by electron spin resonance (ESR) spectroscopy and density functional theory. Electrons are produced by γ irradiation or by photoionization of K(4)Fe(CN)(6) in neutral 7.5 M LiCl-D(2)O aqueous glasses at low temperatures with identical results. Electrons are found to add to both the peptide bond and the carboxyl grou...
متن کاملmagnetisation and electron spin resonance studies of tetrahedral amorphous carbon
the magnetisation and electron spin resonance (esr) spectrum of two specimens of tetrahedral amorphous carbon (ta-c), deposited from a filtered cathodic arc, were measured over a wide temperature range. the magnetisation was found to consist of superparamagnetic, paramagnetic and diamagnetic contributions. the superparamagnetic contribution resembled that recently found in carbon prepared from ...
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Free radicals generated from alpha- and beta-ionyl bromides gave well resolved ESR spectra, but retinyl bromide and chloride gave only broad signals. Delocalised radicals were also spectroscopically observed on hydrogen abstraction from alpha-ionane, alpha-ionyltrimethylsilylether and buten-3-ynyl-2,6,6-trimethyl-2-cyclohexene. Retinyl and beta-ionyl radicals, derived from the corresponding xan...
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ژورنال
عنوان ژورنال: The Journal of Physical Chemistry
سال: 1970
ISSN: 0022-3654,1541-5740
DOI: 10.1021/j100717a003