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以4-(4`-硝基偶氮苯)-1-萘酚、4-氯正丁醇和3-噻吩乙酸为原料,通过脱氯化氢反应和酯化反应,制备了具有推拉电子结构的新型偶氮苯衍生物3-{4-[(4`-硝基苯偶氮基)萘氧基]丁基}噻吩基乙酸酯(ATh4)。研究表明,ATh4的热稳定性较好,起始分解温度约为200℃;ATh4在不同的极性溶剂中产生明显的溶致变色效应,在550~750 nm范围内,ATh4在三氯甲烷和THF中没有出现明显的吸收带,而在DMSO、DMF和NMP中出现明显的吸收带,随着溶剂极性的增强,最大吸收峰强度不断增强,且最大吸收峰产生红移现象;ATh4具有良好的光致发光性能,在三氯甲烷中ATh4在550 nm处出现一个明显的荧光发射峰。
A new type of couple with push-pull electronic structure was prepared by dehydrochlorination and esterification with 4- (4’-nitroazobenzene) -1-naphthol, 4-chlorophenol and 3-thiopheneacetic acid Nitrobenzene derivatives 3- {4 - [(4’-nitrophenylazo) naphthyloxy] butyl} thienyl acetate (ATh4). The results show that the thermal stability of ATh4 is good with an initial decomposition temperature of about 200 ℃. ATh4 shows obvious lyotropic effect in different polar solvents. In the range of 550-750 nm, No obvious absorption band appeared in THF, but obvious absorption band appeared in DMSO, DMF and NMP. With the increase of solvent polarity, the maximum absorption peak intensity was enhanced and the maximum absorption peak produced red shift; ATh4 had good Of the photoluminescence properties of ATh4 in chloroform at 550 nm at a significant fluorescence emission peak.