一种苯基吡啶基丙烯腈类水相人工光捕获体系的构筑

作     者：李梦行 李家吉 冯晋 朱金丽 汤艳峰 孙广平 

作者机构：南通大学化学化工学院江苏 南通 

出 版 物：《有机化学研究》 (Journal of Organic Chemistry Research)

年 卷 期：2024年第12卷第3期

页      码：474-481页

摘      要：本文设计合成了一种具有聚集诱导效应的苯基吡啶基丙烯腈衍生物(PPAD)作为客体分子,通过与羧酸盐修饰的水溶性柱[5]芳烃(P[5]A)进行主–客体作用,在水中形成了超分子两亲体,并自组装成P[5]A-PPAD超分子纳米颗粒。由于P[5]A-PPAD具有明显的荧光发射能力,可将其作为能量供体,并对能量受体荧光染料4,7-二(2-噻吩基)-2,1,3-苯并噻二唑(DBT)进行包载,成功构筑了一种新型P[5]A-PPAD-DBT超分子人工光捕获体系。通过性能测试发现,P[5]A-PPAD-DBT体系的能量转移效率为52.7%,天线效应为11.6,具有良好的水相人工光捕获能力,为水相人工光捕获体系的构筑与发展提供了新的思路。In this work, a phenylpyridinylacrylonitrile-based derivative (PPAD) with aggregation inducing effect was initially designed and synthesized, which was used as a guest molecule. Through host-guest interaction with a water-soluble pillar[5]arene (P[5]A) modified with carboxylate salts, P[5]A-PPAD supramolecular amphiphilics were formed in water and self-assembled into P[5]A-PPAD supramolecular nanoparticles. Due to the significant fluorescence emission ability of P[5]A-PPAD, P[5]A-PPAD could be used as an energy donor and encapsulate the energy acceptor fluorescent dye 4,7-di(2-thienyl)-2,1,3-benzothiadiazole (DBT) to construct P[5]A-PPAD-DBT supramolecular artificial light harvesting system. After further investigation of light-harvesting performance, the energy transfer efficiency of P[5]A-PPAD-DBT system was 52.7%, and the antenna effect was 11.6, which indicated a good aqueous light-harvesting ability, providing new ideas for the construction and development of supramolecular artificial light harvesting systems.

主 题 词：超分子自组装 主–客体作用 人工光捕获 能量转移 

学科分类：081704[081704] 07[理学] 08[工学] 0817[工学-轻工类] 070303[070303] 0703[理学-化学类] 

D　O　I：10.12677/jocr.2024.123045

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