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E. s. r. of free radicals in irradiated uracil-. beta. -D-arabinofuranoside

Abstract

Electron-spin-resonance measurements have been made on single crystals of uracil-..beta..-D-arabinofuranoside, which were irradiated by 4.0 MeV electrons at 77 K. At low temperatures, two radicals have been identified, one attributed to a hydrogen abstraction of 05' in the sugar moiety and the other to a radical anion located on the pyrimidine ring. The former was very unstable and seemed to act as a precursor to other unidentified radical species stable at 77 K. At room temperature, the main resonance was due to hydrogen addition to C5 and was probably produced by protonation of the anion. This same radical was also produced by irradiation at room temperature.
Authors:
Bergene, R; [1]  Vaughan, R A
  1. Oslo Univ. (Norway). Fysisk Institutt
Publication Date:
Feb 01, 1976
Product Type:
Journal Article
Reference Number:
AIX-07-255450; EDB-76-098959
Resource Relation:
Journal Name: Int. J. Radiat. Biol.; (United Kingdom); Journal Volume: 29:2
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; NUCLEOSIDES; CHEMICAL RADIATION EFFECTS; ALDEHYDES; AZINES; BEAMS; CARBOHYDRATES; CHEMISTRY; CRYSTALS; ELECTROMAGNETIC RADIATION; ENERGY RANGE; HETEROCYCLIC COMPOUNDS; HYDROXY COMPOUNDS; IONIZING RADIATIONS; LEPTON BEAMS; MAGNETIC RESONANCE; MEV RANGE; MONOSACCHARIDES; NUCLEOTIDES; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; PARTICLE BEAMS; PENTOSES; PYRIMIDINES; RADIATION CHEMISTRY; RADIATION EFFECTS; RADIATIONS; RESONANCE; RIBOSIDES; SACCHARIDES; 560111* - Radiation Effects on Biochemicals- In Vitro- (-1987)
OSTI ID:
7261956
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: IJRBA
Submitting Site:
INIS
Size:
Pages: 145-157
Announcement Date:
Sep 01, 1976

Citation Formats

Bergene, R, and Vaughan, R A. E. s. r. of free radicals in irradiated uracil-. beta. -D-arabinofuranoside. United Kingdom: N. p., 1976. Web. doi:10.1080/09553007614550161.
Bergene, R, & Vaughan, R A. E. s. r. of free radicals in irradiated uracil-. beta. -D-arabinofuranoside. United Kingdom. doi:10.1080/09553007614550161.
Bergene, R, and Vaughan, R A. 1976. "E. s. r. of free radicals in irradiated uracil-. beta. -D-arabinofuranoside." United Kingdom. doi:10.1080/09553007614550161. https://www.osti.gov/servlets/purl/10.1080/09553007614550161.
@misc{etde_7261956,
title = {E. s. r. of free radicals in irradiated uracil-. beta. -D-arabinofuranoside}
author = {Bergene, R, and Vaughan, R A}
abstractNote = {Electron-spin-resonance measurements have been made on single crystals of uracil-..beta..-D-arabinofuranoside, which were irradiated by 4.0 MeV electrons at 77 K. At low temperatures, two radicals have been identified, one attributed to a hydrogen abstraction of 05' in the sugar moiety and the other to a radical anion located on the pyrimidine ring. The former was very unstable and seemed to act as a precursor to other unidentified radical species stable at 77 K. At room temperature, the main resonance was due to hydrogen addition to C5 and was probably produced by protonation of the anion. This same radical was also produced by irradiation at room temperature.}
doi = {10.1080/09553007614550161}
journal = {Int. J. Radiat. Biol.; (United Kingdom)}
volume = {29:2}
journal type = {AC}
place = {United Kingdom}
year = {1976}
month = {Feb}
}