ESR study of the ionic radical species in an irradiated single crystal of isocytosine |
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| Affiliation: | 1. Department of Applied Physics, School of Science, Hunan University of Technology, Zhuzhou, 412007, China;2. School of Physics and Electronics, North China University of Water Resources and Electric Power, Zhengzhou, 450011, China;1. Zhejiang Key Liaboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing, 312000, China;2. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China |
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| Abstract: | ![]()
The radicals in a single crystal of isocytosine, irradiated with gamma rays at 77 K, were studied with the ESR spectroscopy. Three types of radicals were detected. One of them, whose ESR spectrum exhibits two14N and two1H coupling nuclei, is interpreted to be the isocytosine cation radical. The second species, characterized by a doublet structure, is thought to be formed by a proton transfer to the isocytosine anion. The third species could not be analysed in detail. All three species are unstable upon warming or upon illumination with green Ar laser light. |
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