ESR and ENDOR studies of x-irradiated L-proline monohydrate and L-thioproline single crystals

Journal Article · Mon Dec 31 23:00:00 EST 1979 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.438937· OSTI ID:5548908

Nelson, W H; Taylor, D R

Radicals with extended lifetimes at room temperature, and formed by x irradiation of the parent compounds, were studied by ESR and ENDOR spectroscopy. The radicals' characteristics in each case are similar and include significant couplings to one ..cap alpha.. proton (A/sub iso/ = -54.8 MHz for proline and -51.0 MHz for thioproline), and one ..beta.. proton (A/sub iso/ = 64.0 MHz for proline and 53.8 MHz for thioproline). Further analysis of the results indicates the radicals to result from a reaction similar to deamination, evidently originating with electron capture by the respective parents.

• Research Organization: Department of Physics, Georgia State University, Atlanta, Georgia 30303
• OSTI ID: 5548908
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 72:1; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
AMINES
AMINO ACIDS
AZOLES
CARBOXYLIC ACIDS
CHEMISTRY
CRYSTALS
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
ENDOR
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
IONIZING RADIATIONS
MAGNETIC RESONANCE
MONOCRYSTALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PROLINE
PYRROLES
PYRROLIDINES
RADIATION CHEMISTRY
RADIATIONS
RADICALS
RESONANCE
X RADIATION