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本文设计合成了未见文献报道的meso-四(4-(N-咔唑)丁烷氧苯基)卟啉(1)及其稀土金属配合物(Ln=Sm(2),Eu(3),Tb(4),Dy(5)).通过核磁共振氢谱、紫外-可见吸收光谱、元素分析和红外光谱对稀土金属卟啉配合物进行了表征,并研究了卟啉样品的荧光性质和表面光电压性质.结果表明,受无辐射跃迁等因素的影响,卟啉1~5的荧光强度和荧光量子效率依次减小.在无外加电场的情况下,稀土金属配合物2~5的表面光电压强度变化与荧光强度变化呈现相反的规律,充分表明荧光发射与表面光电压的相互竞争过程.不同性质的电场对金属卟啉配合物的电荷分离影响显著,在正电场和无外加电场情况下,配合物2~5的表面光电压信号强度依次增加.
In this paper, meso-tetrakis (4- (N-carbazole) butanoxyphenyl) porphyrin (1) and its rare earth metal complexes (Ln = Sm (2) , Tb (4), Dy (5)) .Porphyrins were characterized by 1H-NMR, UV-Vis absorption spectra, elemental analysis and IR spectra. The results showed that the fluorescence intensity and fluorescence quantum efficiency of porphyrin 1 ~ 5 decreased in turn under the influence of non-radiative transitions, etc. In the absence of applied electric field, the surface photovoltage of rare earth metal complexes 2 ~ 5 The changes of intensity and fluorescence intensity show the opposite law, which fully shows the mutual competition between fluorescence emission and surface photovoltage.The electric fields with different properties have a significant influence on the charge separation of metalloporphyrin complexes. In the case of positive electric field and no external electric field, The surface photovoltage signal intensities of objects 2 ~ 5 increase in sequence.