摘要
用紫外-可见吸收光谱、荧光光谱和循环伏安等方法在相同条件下分别测量了n-propyl苝单酰亚胺单酐(PMI)、ethylPMI和苝单酰亚胺二酯衍生物(1~4)(PMD(1~4))的电子吸收光谱、荧光光谱、最大摩尔消光系数(ε)、荧光量子产率(Φf)和电致化学发光(ECL),并与氮原子取代苝二酰亚胺的相应性质进行了比较。结果表明:n-propylPMI、ethylPMI和PMD(1~4)的Φf分别为0.96、0.98、0.94、0.93、0.91、0.89;ECL以PMD-2的发光强度最大,PMD-4次之;酸酐键酯化对苝系衍生物荧光猝灭影响较小,仅使其光谱峰位置发生移动;对于其电化学性质,PMD(1~4)的循环伏安曲线都没有氧化峰,还原峰也只有PMD-2和PMD-4显现。
The fluorescence quantum yield(Φf),molar extinction coefficient(ε),and electrogenerated chemiluminescence(ECL)of perylene monoimide alcohol ester derivatives(PMDs)were characterized by UV-Vis spectroscopy,fluorescence spectroscopy and cyclic voltammetry(CV)charge trapping technique under identical conditions.The results showed that theΦf values of n-propylPMI,ethylPMI and PMD(1~4)were 0.96,0.98,0.94,0.93,0.91 and 0.89.ECL test results displayed that the luminescence intensity of PMD-2 was the highest,followed by that of PMD-4.The anhydride bond esterification affected the fluorescence quenching less,and only the derivatives spectral peaks were shifted.In the CV curves of PMD(1~4)the oxidation peaks disappeared,and those of PMD-2,and PMD-4 exhibited only reduction peaks.
作者
刘丽敏
石建军
张艳红
马祥梅
LIU Limin;SHI Jianjun;ZHANG Yanhong;MA Xiangmei(School of Chemical Engineering,Anhui University of Science&Technology,Huainan 232001,China)
出处
《辐射研究与辐射工艺学报》
CAS
CSCD
2021年第2期90-96,共7页
Journal of Radiation Research and Radiation Processing
基金
安徽省重点研究与开发计划项目(202004h07020022)资助。
关键词
苝酰亚胺醇酯
荧光
荧光量子产率
电化学
电致化学发光
Perylene alcohol ester imide
Fluorescence
Fluorescence quantum yield
Electrochemistry
Electrogenerated chemiluminescence
