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| 四苯基卟啉在苯溶液中光解产生自由基的ESR研究 | |
| 引用本文： | 周建威,陈德文,徐广智. 四苯基卟啉在苯溶液中光解产生自由基的ESR研究[J]. 生物化学与生物物理进展, 1991, 18(4): 299-302 |
| 作者姓名： | 周建威 陈德文 徐广智 |
| 作者单位： | 中国科学院化学研究所;中国科学院化学研究所;中国科学院化学研究所 |
| 基金项目： | 国家自然科学基金资助课题. |
| 摘 要： | 用自旋捕捉-ESR方法对四苯基卟啉(H2TPP)在苯中光解后产生的活泼自由基进行研究。当PBN存在时,光解中可给出6重ESR峰,表明自旋加合物为[HTPP-PBN]·。而氧和碘化物的猝灭作用可知H2TPP的光解是经由三重激发态途径进行的。而PBN的光敏分解则是由尚未转入三重态的H2TPP所引起的。 |
| 关 键 词： | 四苯基卟啉 自由基 自旋捕捉 电子自旋共振 光解 |
| 收稿时间： | 1990-05-28 |
| 修稿时间： | 1990-09-24 |
INVESTIGATION ON THE FREE RADICALS PRODUCED IN THE PHOTOLYSIS OF TETRA-PHENYL-PORPHYRIN IN BENZENE SOLUTION BY ESR METHOD |
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| Zhou Jianwei,Chen Dewen and Xu Guaugzhi. INVESTIGATION ON THE FREE RADICALS PRODUCED IN THE PHOTOLYSIS OF TETRA-PHENYL-PORPHYRIN IN BENZENE SOLUTION BY ESR METHOD[J]. Progress In Biochemistry and Biophysics, 1991, 18(4): 299-302 | |
| Authors: | Zhou Jianwei Chen Dewen Xu Guaugzhi |
| Affiliation: | Institute of Chemistry, Academia Sinica;Institute of Chemistry, Academia Sinica;Institute of Chemistry, Academia Sinica |
| Abstract: | The active radicals produced from the photolysis of tetra-phenyl-porphyrin(H2TPP)in benzene have been investigated by spin trapping-ESR technique. The ESR spectrum with 6 lines was detected in the presence of spin trap PBN, it means that spin adduct is [HTPPPBN]·. The ESR signal with 6 lines was quenched by O2 and NaI, it can be concluded, therefore, that the photolysis process of H2TPP was accomplished via triplet excited state. |
| Keywords: | tetra-phenyl-porphyrin photolysis ESR spin trapping free radical |
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