SPECTRAL STUDIES OF DERIVATIVE OF TRICYCLIC MODIFIED NUCLEOSIDE IN AQUEOUS SOLUTIONS
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SPECTRAL STUDIES OF DERIVATIVE OF TRICYCLIC MODIFIED NUCLEOSIDE IN AQUEOUS SOLUTIONS
Journal of Radiation Research and Radiation ProcessingVol. 20, Issue 4, Pages: 241-245(2002)
作者机构:
1.中国科学院上海原子核研究所辐射化学开放实验室 上海 201800
2.同济大学化学系 上海 200092
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ZHAO Hongwei, DOU Daying, MIAO Jinling, et al. SPECTRAL STUDIES OF DERIVATIVE OF TRICYCLIC MODIFIED NUCLEOSIDE IN AQUEOUS SOLUTIONS. [J]. Journal of Radiation Research and Radiation Processing 20(4):241-245(2002)
DOI:
ZHAO Hongwei, DOU Daying, MIAO Jinling, et al. SPECTRAL STUDIES OF DERIVATIVE OF TRICYCLIC MODIFIED NUCLEOSIDE IN AQUEOUS SOLUTIONS. [J]. Journal of Radiation Research and Radiation Processing 20(4):241-245(2002)DOI:
SPECTRAL STUDIES OF DERIVATIVE OF TRICYCLIC MODIFIED NUCLEOSIDE IN AQUEOUS SOLUTIONS
The absorption spectra of N-4-desmethylwyosine (dYt), a derivative of the tricyclic modified nucleoside wyosine, in aqueous solutions were studied by time-resolved laser photolysis. The oxidizing radical SO,4,·-, was used to produce dYt radical cation. The mechanism of dYt monophotonic ionization was suggested. Distinct triplet was not observed in this work. The quantum yield of formation of hydrated electrons (Φ,e,-,) was determined to be 0.04 at room temperature in neutral aqueous solution by using KI solution as a reference.
关键词
稀有三环核苷衍生物单光子电离自由基激光光解瞬态吸收光谱
Keywords
Derivative of tricyclic modified nucleosideMonophotonic ionizationRadicalLaser photolysisTransient absorption spectrum