三蝶烯邻醌衍生物的荧光和电化学性质

Study on the Fluorescent and Electrochemical Properties of Triptycene Orthoquinone

研究三蝶烯邻醌衍生物的荧光和电化学性质,以及甲氧基/羰基官能团比例对三蝶烯邻醌分子内电荷转移过程的影响.通过循环伏安曲线,分析了6,7,12,13-4-甲氧基-2,3-2-邻醌基三蝶烯(M4OT)与高半胱氨酸反应时的电荷转移变化机理.结果表明:分子中的光诱导电荷转移与分子内的电荷转移作用,是影响其光学性质与电化学性质的关键;当分子中的官能团发生变化时,其光诱导电荷转移过程会被阻断,继而分子的荧光峰强度和电化学氧化还原峰的位置与强度也会随之改变.

The fluorescence and electrochemical properties of triptycene orthoquinone derivatives were studied.Differences of their optical properties were also studied through fluorescence spectra.Furthermore influence of methoxy/carbonyl ratio in the intramolecular charge transfer process of triptycene orthoquinone derivatives was observed.We also focus on the fluorescence properties of 6,7,12,13-4-methoxy-2,3-2-oquinone triptycene（M4OT） which showed the mechanism of charge transfer process in homocysteine through cyclic voltammetry curves.Results showed that the keys of changing fluorescence and electrochemical properties of M4OT were PET and ICT in the molecule.Changes of functional group blocked PET.As well the fluorescence intensity and positions of oxidation and reduction peaks also changed.