| Laser photolysis of interaction of poly-guanylic acid (5') with anthraquinone-2-sulfonate |
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| 作者姓名： | 马建华 韩镇辉 林维真 姚思德 王文峰 林念芸 |
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| 作者单位： | MA Jianhua LIN Weizhen WANG WenfengHAN Zhenhui YAO Side & LIN NianyunCollege of Biology Engineering，Jimei University，Xiamen 361021，China;Laboratory of Radiation Chemistry，Shanghai Institute of Nuclear Research，Chinese A |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China (Grant No. 39830090). |
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| 摘 要： | The electron transfer reaction between triplet anthraquinone-2-sulfonate and poly-guanylic acid (5') in CH3CN-H2O (97 : 3) has been investigated by 248 nm (KrF) laser flash photolysis. The transient absorption spectra and kinetics obtained from the interaction of triplet anthraquinone-2-sulfonate and polyG] demonstrate that the primary ionic radical pair, radical cation of polyG] and radical anion of anthraquinone-2-sulfonate have been detected simultaneously. The free energy changes in the process of the electron transfer were also calculated.
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Laser photolysis of interaction of poly-guanylic acid (5') with anthraquinone-2-sulfonate |
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| MA Jianhua LIN Weizhen WANG WenfengHAN Zhenhui YAO Side & LIN NianyunCollege of Biology Engineering,Jimei University,Xiamen ,China,Laboratory of Radiation Chemistry.Laser photolysis of interaction of poly-guanylic acid (5'''') with anthraquinone-2-sulfonate[J].Science in China(Chemistry),2002(4). |
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| Authors: | MA Jianhua LIN Weizhen WANG WenfengHAN Zhenhui YAO Side & LIN NianyunCollege of Biology Engineering Jimei University Xiamen China Laboratory of Radiation Chemistry |
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| Institution: | MA Jianhua LIN Weizhen WANG WenfengHAN Zhenhui YAO Side & LIN NianyunCollege of Biology Engineering,Jimei University,Xiamen 361021,China,Laboratory of Radiation Chemistry,Shanghai Institute of Nuclear Research,Chinese A |
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| Abstract: | The electron transfer reaction between triplet anthraquinone-2-sulfonate and poly-guanylic acid (5') in CH3CN-H2O (97 : 3) has been investigated by 248 nm (KrF) laser flash photolysis. The transient absorption spectra and kinetics obtained from the interaction of triplet anthraquinone-2-sulfonate and polyG] demonstrate that the primary ionic radical pair, radical cation of polyG] and radical anion of anthraquinone-2-sulfonate have been detected simultaneously. The free energy changes in the process of the electron transfer were also calculated. |
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| Keywords: | anthraquinone-2-sulfonate poly[G] laser photolysis |
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