π-π stacking controlled photochromic/thermochromic properties of salicylaldehyde Schiff base in solid state
作者:Yuanyuan Li、Haowen Li、Wenhui Jin、Xinqi Xu、Huiying Liu、Yang Ding、Gang Wang、Tingting Zhang、Qiuchen Peng、Juan He、Qinggang Hu、Li Pan、Kai Li
DOI:10.1016/j.dyepig.2022.110295
日期:2022.6
Salicylaldehyde Schiff base is a kind of typical photochromism and thermochromism system with aggregation-induced emission (AIE) characteristic. In this work, three salicylaldehyde Schiff base derivatives of 1–3 were synthesized, which showed similar emissions but different photochromic/thermochromic properties in solid state. Only compound 1 exhibited reversible photo- and thermo-responsive performances
水杨醛席夫碱是一种典型的具有聚集诱导发射(AIE)特性的光致变色和热致变色体系。在这项工作中,合成了1-3的三种水杨醛席夫碱衍生物,它们在固态下表现出相似的发射,但具有不同的光致变色/热致变色特性。只有化合物1根据紫外光照射和加热时的烯醇-酮互变异构,在固态下表现出可逆的光响应和热响应性能。机理研究表明,这些不同的光致变色/热致变色特性受相邻分子的π-π堆积结构控制。这项工作为理解固态水杨醛席夫碱的光致变色/热致变色机理提供了新的视角。