Electrochemical Studies of the Substituent Effects on the Interactions between Phenylenediamine Substituted Zinc Porphyrins and Imidazole
碩士 === 國立暨南國際大學 === 應用化學系 === 103 === A series of phenylenediamine(PD)-substituted zinc porphyrins with different electron-withdrawing and electron-donating groups have reported in this work. Their electrochemical properties were investigated by UV-Vis spectra, cyclic voltammetry (CV), and optically...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2015
|
| Online Access: | http://ndltd.ncl.edu.tw/handle/26706955928104725104 |
| Summary: | 碩士 === 國立暨南國際大學 === 應用化學系 === 103 === A series of phenylenediamine(PD)-substituted zinc porphyrins with different electron-withdrawing and electron-donating groups have reported in this work. Their electrochemical properties were investigated by UV-Vis spectra, cyclic voltammetry (CV), and optically transparent thin-layer electrode (OTTLE).
Imidazole is an common axial ligand of metalloporphyrin. In the UV-Vis spectrum, the spectral change between four and five coordinated zinc porphyrins were monitored while imidazole added. CVs showed that all those zinc porphyrins have four redox couples in the oxidative aspect. Controlling the oxidative potential would dominate the move of imidazole. Because the affinity of oxidized species is larger than the neutral ones. By using CV and OTTLE, we verified that imidazole has a shuttling behavior between central metal and oxidized PD moiety.
|
|---|