ESR of hydrogen addition radicals in single crystals of 1-methylcytosine and 1-methyluracil. [Gamma radiation]
Journal Article
·
· Radiat. Res.; (United States)
Nitrogen and small hydrogen hyperfine couplings are analyzed in the hydrogen adduct of 1-methyluracil, and the 5,6-dihydro-1-methylcytosin-6-yl and -5-yl radicals. The information derived from these small hyperfine couplings is used to eliminate the lactim form of 5,6-dihydro-1-methyluracil-5-yl as a possible free radical assignment for the dominant room-temperature radical in 1-methyluracil and, thereby, unambiguously assign C/sub 5/ as the site of hydrogen addition. Comparison of nitrogen hyperfine coupling in the 6-yl radical of 1-methyluracil and 1-methylcytosine with other proposed radicals of this type lends further support to the other assignment.
- Research Organization:
- Univ. of Rochester, NY
- OSTI ID:
- 7349384
- Journal Information:
- Radiat. Res.; (United States), Journal Name: Radiat. Res.; (United States) Vol. 66:2; ISSN RAREA
- Country of Publication:
- United States
- Language:
- English
Similar Records
ESR of spin-trapped radicals in aqueous solutions of dihydropyrimidine bases. [Gamma radiation]
Electron spin resonance of free radicals and radical pairs in irradiated single crystal of 1-methyluracil
OH-induced free radicals in uridine studied by a method combining ESR, spin-trapping, and liquid chromatography
Journal Article
·
Sat Jul 01 00:00:00 EDT 1978
· Radiat. Res.; (United States)
·
OSTI ID:6670939
Electron spin resonance of free radicals and radical pairs in irradiated single crystal of 1-methyluracil
Journal Article
·
Sat Sep 01 00:00:00 EDT 1973
· Z. Naturforsch., c, v. 28c, no. 9/10, pp. 523-532
·
OSTI ID:4329762
OH-induced free radicals in uridine studied by a method combining ESR, spin-trapping, and liquid chromatography
Journal Article
·
Wed Oct 01 00:00:00 EDT 1986
· Radiat. Res.; (United States)
·
OSTI ID:6914854
Related Subjects
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
AMINES
AZINES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CRYOGENIC FLUIDS
CRYSTALS
DECOMPOSITION
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
ELEMENTS
FLUIDS
GAMMA RADIATION
HETEROCYCLIC COMPOUNDS
HYDROGEN
HYDROXY COMPOUNDS
IONIZING RADIATIONS
MAGNETIC RESONANCE
MONOCRYSTALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIMIDINES
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADICALS
RADIOLYSIS
RESONANCE
STRUCTURAL CHEMICAL ANALYSIS
URACILS
400600* -- Radiation Chemistry
AMINES
AZINES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CRYOGENIC FLUIDS
CRYSTALS
DECOMPOSITION
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
ELEMENTS
FLUIDS
GAMMA RADIATION
HETEROCYCLIC COMPOUNDS
HYDROGEN
HYDROXY COMPOUNDS
IONIZING RADIATIONS
MAGNETIC RESONANCE
MONOCRYSTALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIMIDINES
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADICALS
RADIOLYSIS
RESONANCE
STRUCTURAL CHEMICAL ANALYSIS
URACILS