Substituent-modulated aggregation-induced emission and solid-state acid/base sensing applications of pyrazole-based donor-acceptor derivatives
作者:Bhupendra Kumar Dwivedi、Prasanta Bhowmik、Daya Shankar Pandey
DOI:10.1016/j.dyepig.2022.110444
日期:2022.8
donor and cyanomethylene/benzothiazole as acceptor units have been synthesized and thoroughly characterized by IR, 1H/13C NMR, HRMS and single crystal X-ray diffraction analyses. These new systems exhibited efficient aggregation induced emission and solid-state emission with good quantum yield. Interestingly, these compounds display acid/base-induced reversible solid-state fluorescence switching, and
已经合成了含有取代吡唑作为供体和氰亚甲基/苯并噻唑作为受体单元的AIE 活性发光体 ( PYZ1-PYZ4 ),并通过 IR、 1 H/ 13 C NMR、HRMS 和单晶 X 射线衍射分析对其进行了全面表征。这些新系统表现出高效的聚集诱导发射和固态发射,具有良好的量子产率。有趣的是,这些化合物显示出酸/碱诱导的可逆固态荧光转换,可用作固态酸/碱传感器。结构-性质关系研究清楚地表明,结构变化强烈影响这些化合物的光物理性质。