Tuning up of chromism,luminescence in cadmium-viologen complexes through polymorphism strategy:Inkless erasable printing application

作     者：Yanting Yang Guorong Wang Kangjing Li Wen Yang Jing Zhang Jian Zhang Shili Li Xianming Zhang Yanting Yang;Guorong Wang;Kangjing Li;Wen Yang;Jing Zhang;Jian Zhang;Shili Li;Xianming Zhang

作者机构：Key Laboratory of Magnetic Molecules&Magnetic Information Materials of Ministry of EducationSchool of Chemistry and Materials ScienceShanxi Normal UniversityTaiyuan 030032China School of ChemistryTaiyuan University of TechnologyTaiyuan 030024China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报(英文版))

年 卷 期：2025年第36卷第1期

页      面：322-325页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：financially supported by the National Natural Science Foundation of China(NSFC,Nos.22075168,21701105,21871167&91961201) Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering(No.2022SX-FR003) 

主　　题：Polymorphs Photochromism Electrochromism Photoluminescence 

摘      要：In our work,polymorphism strategy has been successfully applied to tune up chromism and luminescence properties of viologen-based *** polymorphs of viologen-based complexes ofα-CdBr_(2)(PHSQ)_(2)(H_(2)O)_(2)(1)andβ-CdBr_(2)(PHSQ)_(2)(H_(2)O)_(2)(2)(PHSQ=N-(4-sulfophenyl)-4,4-bipyridinium)were synthesized by changing the *** can both respond to UV light and electricity in the manner of chromism visible to the naked eye and the coloration states have good reversibility,through which an inkless erasable printing model has been *** the coloration contrast of 1 is higher compared to ***,they both exhibit photoluminescence properties and the intensity of 1 is twice that of 2,which is accompanied by photoquenching upon continuous UV light *** only divergence of disordered/ordered O atoms in the two crystalline compounds leads to significantly different chromic and luminescent *** explorations simultaneously demonstrate that the different chromic performance between 1 and 2 should attribute to the alteration of stimulus-induced(light/electricity)electron transfer channels caused by the ordered/disordered O atoms in the complexes,which is achieved through C-H···O and O-H···O interactions to change crystal arrangement and structural rigidity,thus affect luminescent properties.