低对称性硫代烃基四氮杂卟啉的合成、表征及电化学性质研究

合成了硫代烃基四氮杂卟啉2,3,7,8,12,13-六(甲硫基)-17,18-一(二噻英)四氮杂卟啉[H₂Pz(dtn)(mt)₆]及其过渡金属配合物MPz(dtn)(mt)₆,由元素分析、质谱、¹HNMR、UV-Vis和IR光谱对其组成和结构进行了表征,通过循环伏安测试结果讨论了H₂Pz(dtn)(mt)₆的电化学性质,证明H₂Pz(dtn)(mt)₆的还原过程为单电子连续传输过程,属于CE机理.研究了H₂Pz(dtn)(mt)₆对正极材料MnO₂在锂离子电池中的修饰作用.结果表明,H₂Pz(dtn)(mt)₆对改善锂离子电池的初始充放电容量和循环次数都有明显的增加.

Synthesis, Characterization and Electrochemistry Behavior of a Lower-symmetrical Alkylthioporphyrazine

A lower symmetrical alkylthioporphyrazine, 2,3,7,8,12,13-hexakis(methylthio)-17,18-mono(dithiin)porphyrazine, [H 2Pz(dtn)(mt) 6] , and their derivatives MPz(dtn)(mt) 6 [M=Cu, Zn, Co] were prepared and characterized by the methods of elemental analysis, mass spectra, 1H NMR, IR and UV-Vis spectra. The electrochemical behavior of H 2Pz(dtn)(mt) 6 was studied in DMF solution with the method of CV. The results show that the electron transfer is quasi-one-electron chemical-electronic transfer process. The modification on the cathode materials MnO 2 in lithium ion battery was studied. The results shows that the initial charging and discharging capacity as well as the cyclic number are all increased.