高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (2): 227.

• 论文 • 上一篇    下一篇

新光敏剂铝酞菁光化反应机制研究

陈士明, 陈暨耀, 陆亚蒙, 蔡怀新   

  1. 复旦大学测试中心、物理系, 200433
  • 收稿日期:1989-06-07 出版日期:1991-02-24 发布日期:1991-02-24
  • 通讯作者: 陈士明

A Study on Mechanism of Photochemical Reaction of New Photosensitizer-Sulfonated Aluminum Phthalocyanine

Chen Shi-ming, Chen Ji-yao, Lu Ya-meng, Cai Huai-xin   

  1. Analysis and Measurement Center, Physics Department, Fudan University, Shanghai, 200433
  • Received:1989-06-07 Online:1991-02-24 Published:1991-02-24

摘要: 使用ESR波谱技术研究铝酞菁光化反应,以2,2,6,6-四甲基-4-羟基哌啶醇为探针,探测光化反应的中间产物及反应机制,结果表明,反应体系中氮氧自由基的生成依赖于氧的存在,D2O的增进效应及β-胡萝卜素的抑制效应表明铝酞菁光化反应产生了单线态氧(1O2),SOD及细胞色素C的部分抑制效应表明光化反应中有少量超氧阴离子自由基(O2)生成。

关键词: 光敏剂, 光化反应, 抑制剂

Abstract: The photochemical reaction of sulfonated aluminum phthalocyanine (A1SPC) was studied by ESR spectrometry. By using TMHP as a probe, the intermediates of A1SPC photochemical reaction were detected according to the ESR signal of nitroxyl free radical. It was shown that the formation ofthe nitroxyl free radical--the photooxide of TMHP depends on the presence of oxygen. The results,that the ESR signal is enhanced by deuterated water(D2O), inhibited completely by β-carotene and partially inhibited by cytochrome Cand superoxide dismutase(SOD), show that the singlet oxygen (1O2) is produced and is the main intermediate product.

Key words: Photosensitizer, Photochemical reaction, Inhibitor

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