摘要
合成了以2,6-二乙酰基吡啶缩丙二胺为配体,以OH^-、Cl^-、Br^-、I^-、SCN^-及N_3^-为桥基的6种大环双核铜配合物,用光照法研究了这类配合物催化O_2^-的歧化反应的活性,通过顺磁共振波谱,探讨了各种桥基的配合物与O_2^-反应的两种反应机理:催化歧化机理及氧化还原机理。
Six coordination compounds were synthesized by condensation reactions of 2,6-diacetylpyridine (DAP) with 1,3-diaminepropane in the presence of metal ions. Four of them have not been reported up to now. The structures of complexes were proved by the IR spectra and elemental analysis. We found that the spectra of complexes are similar to that of superoxide dismutase(SOD), and the SOD activity of complexes was measured by illumination method. The reaction mechanism of complexes with superoxide is studied by EPR. The results show that not only catalysis reaction but also oxidation one took place. The catalytic mechanism is also discussed.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第4期335-340,共6页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
关键词
铜配合物
大环
超氧离子
SOD活性
Copper complex, Macrocycle, Superoxide ion, Superoxide dismutgse activity
