Spectral and Electrochemical Studies of the Dendritic Triarylamine 5-substituted Zinc Porphyrins

• Main Authors: Wan-Yi Chiu, 邱婉儀
• Other Authors: Yuhlong Oliver Su
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/45130377884503833524

碩士 === 國立暨南國際大學 === 應用化學系 === 101 === The spectral and electrochemical properties of the first to third generations dendritic triarylamine 5-substituted zinc prophyrins have been studied by using absorption spectroscopy, cyclic voltammetry and spectroelectrochemical method. As compare to ZnTMP, the Soret bands of these three zinc porphyrin do not shift in wavelength, and Qbands only slightly, indicating small perturbation to the porphyrin groud state electronic configuration when the dendritic triarylamine substituents were bonded to zinc prophyrins. To the first-generation zinc prophyrin, the porphyrin ring first oxidized. It’s quite different to the second-and third-generation zinc porphyrin, in which the dendritic triarylamine substituents were oxidized first. From the studies in UV/Vis/NIR spectroelectrochemistry, we can easily confirm each electrochemical reactions happened at porphyrin ring or at substituents.