一种新型吡嗪基二酰肼荧光材料的合成和发光特性  

Synthesis and Luminescence Characteristics of a Novel Pyrazinyl Dihydrazide Fluorescent Material

作　　者：冯依玲 崔旭琳 周悦 张蕊 倪佳怡 郭畅 徐衡 FENG Yiling;CUI Xuling;ZHOU Yue;ZHANG Rui;NI Jiayi;GUO Chang;XU Heng(School of Chemistry and Chemical Engineering,Anqing Normal University,Anqing 246133,China)

机构地区：[1]安庆师范大学化学化工学院,安徽安庆246133

出　　处：《安庆师范大学学报（自然科学版）》2024年第3期95-100,共6页Journal of Anqing Normal University(Natural Science Edition)

基　　金：安徽省高校自然科学重点研究项目(KJ2020A0512)。

摘　　要：该研究以6-氯-3-肼基吡嗪为原料,经酰化反应制备了一种新型吡嗪基二酰肼。通过红外光谱、磁共振谱和质谱分析了新化合物的结构,并采用热重法和荧光光谱法对其热稳定性和光学特性进行了研究。结果表明,该化合物具有优异的热稳定性和荧光光学特性,并且能够有效检测出低浓度的Fe^(3+)和Cr_(2)O_(7)^(2-),其检出限分别为2.10×10^(-8)mol/L和4.64×10^(-9)mol/L。因此,所合成的新型化合物可作为荧光识别探针来检测Fe^(3+)和Cr_(2)O_(7)^(2-)。A novel pyrazinyl dihydrazine was prepared by acylation from 6-chloro-3-hydrazine pyrazine.The structure of the new compound was analyzed by infrared spectroscopy,nuclear magnetic resonance and mass spectrometry.The thermal and optical properties of the novel pyrazinyl dihydrazine were studied by thermogravimetry and fluorescence spectrometry.The results indicate that it has excellent thermal stability and fluorescence properties,and can effectively detect low concentrations of Fe^(3+)and Cr_(2)O_(7)^(2-),with detection limits of 2.10×10^(-8)mol/Land 4.64×10^(-9)mol/L.Therefore,the synthesized compounds can be used as fluorescent probes to detect Fe3+and Cr_(2)O_(7)^(2-).

关 键 词：二酰肼 荧光探针 Fe^(3+) Cr_(2)O_(7)^(2-) 

分 类 号：O644.19[理学—物理化学]