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菲并咪唑类席夫碱双核卟啉的合成及性能

Chemical Reagents(2017)

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Abstract
以9,10-菲醌、对苯二甲醛、对氟苯甲醛、对甲氧基苯甲醛、对硝基苯甲醛及吡咯等为主要原料,设计合成了双核卟啉(P2-PPI).通过FT-IR光谱、1HNMR和13CNMR表征了其结构,利用UV-Vis光谱、荧光光谱测试了其光谱特征.UV-Vis光谱测试表明,双核卟啉(P2-PPI)Soret带的摩尔消光系数是对应单核卟啉(P1)的2.85倍,光谱吸收范围显著变宽;在浓度测试范围内,双核卟啉(P2-PPI)的聚集形态未改变.同浓度下,荧光光谱测试表明,双核卟啉(P2-PPI)中菲并咪唑部分的荧光强度仅为菲并咪唑前驱体的1/3,卟啉单元的荧光强度是单体卟啉的2倍.通过循环伏安法测试并比较了P2-PPI和P1的电化学性质,并结合光化学带隙计算了ELUMO和EHOMO值,分别与TiO2和I-/I3-氧化还原电对能级匹配.
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Key words
binuclearporphyrin,phenanthroimidazole,aggregation behaviors,fluorescence
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