影像科学与光化学 ›› 2003, Vol. 21 ›› Issue (6): 405-411.DOI: 10.7517/j.issn.1674-0475.2003.06.405

• 研究论文 • 上一篇    下一篇

以Nafion负载的三联吡啶铂络合物为敏化剂光敏氧化7-去氢胆固醇

张栋, 吴骊珠, 张丽萍, 佟振合   

  1. 中国科学院, 理化技术研究所, 北京, 100101
  • 收稿日期:2003-07-02 修回日期:2003-07-10 出版日期:2003-11-23 发布日期:2003-11-23
  • 通讯作者: 佟振合;吴骊珠
  • 基金资助:
    科技部国家重点基础研究发展规划项目(G2000078104,G2000077502);国家自然科学基金资助项目(20073051)

PHOTOSENSITIZED OXIDATION OF 7-DEHYDROCHOLESTEROL BY NAFION-LOADED PLATINUM(Ⅱ) TERPYRIDYL ACETYLIDE COMPLEX

ZHANG Dong, WU Li-zhu, ZHANG Li-ping, TUNG Chen-ho(TONG Zhen-he)   

  1. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101, P.R. China
  • Received:2003-07-02 Revised:2003-07-10 Online:2003-11-23 Published:2003-11-23

摘要: 以负载在Nafion膜中的三联吡啶铂络合物(1)为敏化剂,在甲醇和二氯甲烷中研究了7-去氢胆固醇的光敏氧化反应.实验表明,与均相光敏氧化相比,Nafion负载的敏化剂具有敏化剂与产物、剩余底物、溶剂等容易分离并可重复使用的优点.

关键词: 光敏氧化, Nafion负载的敏化剂, 7-去氢胆固醇

Abstract: Photosensitized oxidation of 7 dehydrocholesterol in methanol and dichlormethane by Nafion membrane loaded Platinum(Ⅱ) terpyridyl acetylide (1) was investigated.In comparison with photosensitization in homogeneous solution,Nafion membrane loaded sensitizer can be easily separated from products,unreacted materials,and solvent,and can be reused in many recycles without loss of activity.Although a fraction of generated singlet oxygen is quenched during the course of diffusion from the Nafion membrane to the bulk solution,the overall quantum yield of product formation is still reasonable,and can be further enhanced by using a small amount of deuterium solvent.

Key words: photosensitized oxidation, Nafion-loaded platinum(Ⅱ) terpyridyl acetylide(1), 7-dehydrocholesterol

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