中华医学超声杂志

应用化学 ›› 1987, Vol. 0 ›› Issue (6): 1-6.

• 研究论文 •    下一篇

ms-四咪唑基卟啉络合金属离子的能力及其金属络合物的催化性能

丁力1, 王光元1, 李广年1, 黄枢2   

  1. 1. 中国科学院成都有机化学研究所;
    2. 四川大学化学系, 成都
  • 收稿日期:1986-12-01 修回日期:1987-02-23 出版日期:1987-12-10 发布日期:1987-12-10

THE COMPLEX ABILITIES OF MS-TETRAIMIDAZOLYLPORPHYRINS AND THE CATALYTIC BEHAV10URS OF THEIR METAL COMPLEXES

Ding Li1, Wang Xianyuan1, Li Guangnian1, Huang Shu2   

  1. 1. Chengdu Institute of Organic Chemistry, Academia Sinica;
    2. Department of Chemistry, Sichuan University, Chengdu
  • Received:1986-12-01 Revised:1987-02-23 Published:1987-12-10 Online:1987-12-10

PDF

473

被引次数

20

摘要： 本文考察了两种ms-四咪唑基卟啉〔H2T(2-I)P和H2T(4或5-I)P〕对锌离子的络合能力,并与ms-四苯基卟啉〔H2TPP〕进行了比较。用ms-四咪唑基金属卟啉〔MT(2-I)P和MT(4或5-I)P〕作为催化剂,以分子氧为氧源,考察了对氢醌、异丙硫醇和抗环血酸三种底物氧化反应的催化活性。在后一底物的氧化反应中对CoT(2-I)P,CoT(4或5-I)P和CoTPP进行了对比。此外,还用EHMO程序计算了卟吩、ms-四咪唑基卟啉、ms-四苯基卟啉及其锌络合物的净电荷分布和能量,对反应结果作了比较满意的解释。

Abstract: In this paper, the abilities of ms-tetra (2-imidazolyl) porphyrin and ms-tetra (4 or 5-imidazolyl) porphyrin to form metal complexes with zinc cation have been compared with that of ms-tetraphenylporphyrin. The catalytic activities of metal complexes of ms-tetraimi-dazolylporphyrins have been investigated in the oxidation of hydroquinone, isopropylmercap-tane and ascorbic acid with molecular oxygen. The net charge distribation and orbital energy of H2P, H2TPP, H2T(5-I)P and their zinc complexes have been calculated with EHMO programe. The data explained the experimental results satisfactorily. The results showed that the complex abilities of the porphyrins and the catalytic activities of their metal complexes increased after the imidazolyl groups were introduced into the porphyrin ring.

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