Photooxidation of IR-820 by Calixpyridinium-Induced Assembled Material and Its pH-Controlled Visual Multicolor Luminescence  

作　　者：Kui Wang Guo-Jie Gao Xiao-Yan Wang 

机构地区：[1]Tianjin Key Laboratory of Structure and Performance for Functional Molecules,College of Chemistry,Tianjin Normal University,Tianjin 300387,China

出　　处：《Chinese Journal of Chemistry》2022年第9期1045-1052,共8页中国化学（英文版）

基　　金：We thank the Natural Science Foundation of Tianjin City(20JCYBJC00330);the National Natural Science Foundation of China(21402141)for financial support.

摘　　要：In this work,a spherical calixpyridinium-IR-820 supramolecular assembled material was fabricated based on the calixpyridiniuminduced IR-820 aggregation.This assembled material exhibited a well visible light responsiveness by the photodecomposition of aggregated IR-820 accompanied by an obvious color change.Such photochromic material has many potential applications.More interestingly,the photodecomposition of aggregated IR-820 was significantly promoted,although the aggregated photosensitizers usually exhibited a lower photoreactivity.This approach can be further extended to construct various visible-light responsive supramolecular assembled materials and potentially applied in many fields.Herein,benefitting from the pH-dependent luminescent properties of calixpyridinium and the photodegradation products of IR-820,a pH-controlled visual multicolor luminescence was achieved,which was perfectly applied in the detection of pH from 5 to 10 by naked eyes.

关 键 词：Macrocycles LUMINESCENCE Supramolecular chemistry Calixpyridinium Light responsiveness 

分 类 号：O64[理学—物理化学]