高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (7): 1048.

• 论文 • 上一篇    下一篇

Schiff碱单核及双核配合物拟酶催化性能的研究

陈新斌1, 朱申杰2, 桂明德2, 杨艳1   

  1. 1. 湖南大学化学化工学院, 长沙 410082;
    2. 南开大学化学系, 天津 300071
  • 收稿日期:1999-06-11 出版日期:2000-07-24 发布日期:2000-07-24
  • 通讯作者: 陈新斌(1961年出生),男,博士,副教授,从事生物物理有机化学和仿生催化研究.
  • 基金资助:

    国家自然科学基金(批准号:29472055)资助

Studies on the Biomimetic Catalytic Character of New Schiff Base Mono- and Di-nuclear Complexes

CHEN Xin-Bin1, ZHU Shen-Jie2, GUI Ming-De2, YANG Yan1   

  1. 1. College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China;
    2. Department of Chemistry, Nankai University, Tianjin 300071, China
  • Received:1999-06-11 Online:2000-07-24 Published:2000-07-24

摘要: 系统地研究了新型Schiff碱单核及双核配合物在拟酶催化PhIO单加氧化环己烷反应中的催化性能.结果表明,双核配合物MnML{M=Mn(Ⅱ),Fe(Ⅲ)Cl,Cr(Ⅲ)Cl,Cu(Ⅱ),Co(Ⅱ),Ni(Ⅱ),Zn(Ⅱ);L=双[N,N'亚乙基2,2'(苯亚甲基)二(3,4二甲基吡咯5醛缩亚胺)]}的催化活性比对应的单核配合物MnH2L与MH2L之混合物的催化活性高.因此,我们认为在双核配合物中两金属离子间存在协同作用,并发现这种协同作用一般随双核配合物中成单d电子数增加而增大.

关键词: Schiff碱, 单核配合物, 双核配合物, 拟酶催化, 协同作用

Abstract: This paper first reports the biomimetic catalytic character of new Schiff base mononuclear complexes MH2L{M = Mn(Ⅱ), Fe(Ⅲ)Cl, Cr(Ⅲ)Cl, Cu(Ⅱ), Co(Ⅱ), Ni(Ⅱ), Zn(Ⅱ); L = bis[N,N'-ethylene-2,2'-(phenylmethylene)bis(3,4-dimethylpyrrole-5-aldimino)]} and dinuclear complexes MnML[M = Mn(Ⅱ), Fe(Ⅲ)Cl, Cr(Ⅲ)Cl, Cu(Ⅱ), Co(Ⅱ), Ni(Ⅱ), Zn(Ⅱ)] for the monooxygenation of cyclohexane with PhIO. The results showed that the catalytic property of the dinuclear complex is better than that of the mononuclear complex, so we supposed that there is some cooperation between the two metals in these dinuclear complexes. It seems that this cooperation increases with the increase of the number of unpaired d electrons in the dinuclear complexes.

Key words: Schiff base, Mononuclear complexes, Dinuclear complexes, Biomimetic catalysis, Cooperation

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