Qin Guoliang, Zhang Wenlong, Zhang Jiashan. THE STUDY OF MECHANISM FOR DIMERIZATION OF THYMINE IN FROZEN AQUEOUS SOLUTIONS INDUCED BY γ-RAYS I. FACTORS AFFECTING THE DIMERIZATION OF THYMINE[J]. Journal of Radiation Research and Radiation Processing, 1984,2(2):6-11.
Qin Guoliang, Zhang Wenlong, Zhang Jiashan. THE STUDY OF MECHANISM FOR DIMERIZATION OF THYMINE IN FROZEN AQUEOUS SOLUTIONS INDUCED BY γ-RAYS I. FACTORS AFFECTING THE DIMERIZATION OF THYMINE[J]. Journal of Radiation Research and Radiation Processing, 1984,2(2):6-11.DOI:
In this paper, we have investigated the effect of the radical and cation-anion scavenges on the dimerization of thymine in frozen aqueous solution induced by r-rays. It was proved that the indirect effect of OH radical produced by water rediolysis is not the cause of forming the thymine dimer linked by the cyclobutane ring. The cation-anion recombination is not the way of forming the dimer too. From the research of excitation transfer we have obtained the evidence that thymine dimer linked by the cyclobutane ring is caused by the excited state of thymine. At the same time, We have found that the thymine dimer A can also be formed at 268 K.
关键词
清除剂胸腺嘧啶二聚作用冰态水溶液激发能转移
Keywords
ScavengerDimerization of thymineFrozen aqueous solutionExcitation transfer