摘要
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550～750nm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550nm处出现-个明显的荧光发射峰。
New azobenzene derivatives, 3-{4-[（4＇-nitrobenzene azo group） naphthyloxy] butyl} thienyl acetate （ATh4） containing push-pull electronic structure was synthesized through dehydrochlorination, esterification reactions, using 4-（4＇-nitrophenylazo）-l-naphthol, 4-chloro-1- butanol and 3-thenylacetic acid as raw materials. The results indicate that the ATh4 has a good thermal stability, and the initial decomposition temperature of ATh4 is about 200 ℃; In different polar solvents, ATh4 exhbits obvious slovatochromism. In the range of 550-750 nm, ATh4 not appear an obvious absorption band in chloroform and THF, but in DMSO, DMF and NMP, it shows a significant absorption band. With the polarity of solvent enhancing, the absorption intensity of the maximum peak strengthens and the maximum absorption peak shows red shifting; ATh4 exhbits good photoluminescence properties, fluorescence spectrum presents a obvious emitting peaks that located at 550 nm in chloroform.
出处
《半导体光电》
CAS
CSCD
北大核心
2009年第2期242-245,共4页
Semiconductor Optoelectronics
基金
福建省自然科学基金项目(2008J0143)
福建省科技重大专项项目(2005HZ01-5)
福建省青年人才基金项目(2006F3041)
医学光电科学与技术教育部重点实验室开放课题(JYG0811)
福建省高分子材料重点实验室开放课题(200707)
关键词
偶氮苯衍生物
溶致变色效应
荧光
azobenzene derivatives
slovatochromism
fluorescence
