Near-infrared II photochromic behavior triggered by green light in an <i>in situ</i> protonated dithienylethene functionalized by quinoxalinone moieties
Ziyong Li, Jinzhao Song, Qilian Wang, Yongliang Feng, Qingxin Song, Sixin Wang, Qianqian Nie, Fan He, Hai-Ning Zhang, Hui Guo
Abstract
A novel quinoxalinone-functionalized A–D–A type DTE is developed. Its protonated derivative displays an unprecedented green light-triggered NIR II photochromism in the presence of TFA, which is the first case of NIR II photochromic DTE.
Topics & Concepts
PhotochromismProtonationIn situPhotochemistryInfraredChemistryMaterials scienceOrganic chemistryOpticsIonPhysicsPhotochromic and Fluorescence ChemistryPhotoreceptor and optogenetics researchLuminescence and Fluorescent Materials