Published February 15, 1978 | Version v1
Journal article Metadata-only

EPR study of free radicals produced in pyrrole by x-irradiation and tritium atom decay

Creators

  • 1. Department of Chemistry, Memphis State University, Memphis, Tennessee 38152

Description

The formation of free radicals from pyrrole has been studied by EPR spectroscopy. Radicals were prepared by the radioactive decay of pyrrole-1-t and pyrrole-d4-1-t in matrices of pyrrole and pyrrole-d5, respectively, and by the x irradiation of pyrrole in a matrix of adamantane. In each case the radical formed by the addition of a hydrogen atom to C2 was obtained. The EPR parameters for the radical in adamantane were A(H2) =38.4 G (two protons), A(H3) =A(H5) =11.1 G, A(H4) =1.7 G, (A(N) =3.64 G, g=2.0030. INDO calculations suggest that the radical is best described as an allylic system strongly conjugated with the nitrogen atom

Additional details

Identifiers

DOI
10.1063/1.435898;

Publishing Information

Journal Title
The Journal of Chemical Physics
Journal Volume
68
Journal Issue
4
Series
J. Chem. Phys.
Journal Page Range
1813-1816
ISSN
0021-9606

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
9388744
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Descriptors DEI
CHEMICAL RADIATION EFFECTS; DEUTERIUM; ELECTRON SPIN RESONANCE; PYRROLES; RADICALS; RADIOCHEMISTRY; TRITIUM; X RADIATION
Descriptors DEC
AZOLES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHEMISTRY; ELECTROMAGNETIC RADIATION; HETEROCYCLIC COMPOUNDS; HYDROGEN ISOTOPES; IONIZING RADIATIONS; ISOTOPES; LIGHT NUCLEI; MAGNETIC RESONANCE; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; RADIATION EFFECTS; RADIATIONS; RADIOISOTOPES; RESONANCE; STABLE ISOTOPES; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
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