Electron spin resonance of gamma- and X irradiated nucleic acid base pairs. 1 Methylcytosine: 5 fluorouracil co crystals at 77°K

Article abstract of DOI:10.2307/3574057

The predominant free radical trapped in single crystals of a hydrogen bonded complex of 1 methylcytosine and 5 fluorouracil x irradiated between 77°K and room temperature has been identified. It is characterized by hydrogen atom extraction from N(1) of the 5 fluorouracil moiety, the unpaired electron interacting with the N(1) and F nuclei of this molecule. The principal values of the hyperfine and g tensors are given. The radical is present at 77°K and decays upon warming to room temperature. There is at least one additional radical present at 77°K, but its structure has not been determined.

Full text of DOI:10.2307/3574057

Electron Spin Resonance of Gamma- and X-Irradiated Nucleic Acid Base Pairs: 1-
Methylcytosine: 5-Fluorouracil Co-Crystals at 77°K
Author(s): Robert A. Farley and William A. Bernhard
Source: Radiation Research, Vol. 61, No. 1 (Jan., 1975), pp. 47-54
Published by: Radiation Research Society
Stable URL: http://www.jstor.org/stable/3574057 .
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