Detection and Theoretical Study of Fukui Function of Nitroaromatics by Carbazole-Based Iridium（Ⅲ）Phosphorescent Probe北大核心CSCD

A room temperature phosphorescent Ir（Ⅲ）complex Ir（ppyCz）3 is synthesized by a two-step synthesis method with a carbazole modified organic ligand. The high-efficiency luminescent detection strategy of six familiar nitroaromatics including 1,3-dinitrobenzene,etc. is developed using Ir（ppyCz）3 as the luminescent probe. The highest detection efficiency of 1,3-dinitrobenzene by Ir（ppyCz）3 is demonstrated with the quenching content KSV of（26. 38±1. 05）L/mmol,and minimum detection limit of 2. 50×10−6 mmol/L. Density functional theory calculations and spectral overlap experiments show that the detection mechanism of Ir（ppyCz）3 for the six nitroaromatics is assigned to electron transfer. The sequence of the orbital weighted Fukui function for the six nitroaromatics dovetails with the corresponding detection efficiency sequence of nitroaromatics by Ir（ppyCz）3. © 2022, Science Press (China). All rights reserved.     

基于有机硼酸的糖传感器研究进展

有机硼酸能与二羟基化合物高亲和性地可逆结合,是一类新型的糖传感器材料.根据检测手段的不同可将基于有机硼酸的糖传感器分为光谱传感器、pH指示型传感器、电化学传感器等几类.本文详细评述了各种传感器的检测原理、制备方法和应用,并系统总结了最新研究进展,展望了今后的研究方向.