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调节捐助者-接受者系统,以实现高效的双态排放,以对酸芳香爆炸物的敏感反应进行调节

Si-Hong Chen¹, Zhao-Hua Chen¹, Kai Jiang²

¹School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, Guangzhou 510006, China.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

|May 28, 2023

概括

基于佐的新型双态排放发光剂 (DSEgens) 为检测酸芳香爆炸物 (NAE) 提供了更高的灵敏度. 这些DSEgens为各种形式的视觉NAE检测提供了可靠的平台,改善了化学传感能力.

科学领域:

材料科学材料科学材料科学
分析化学分析化学
有机化学有机化学

背景情况:

双态发射发光剂 (DSEgens) 是化学感应的关键光剂,在溶液和固态中都能有效发射.
以前用于检测酸芳香爆炸物 (NAE) 的DSE基因缺乏足够的灵敏度.
开发高度敏感和稳定的NAE探测器仍然是化学传感的一个重大挑战.

研究的目的:

设计和合成基于佐的新型DSEGEN,以提高对NAE检测的灵敏度.
为了研究结构-属性关系,规范双状态的排放和传感性能.
评估开发的DSEgens作为NAE的化学探针的实际适用性.

主要方法:

计算化学指导了基于佐的DSEgens的设计.
化合物4a-4e的合成和表征.
评价光物理性质,包括双态发射,热/光稳定性,斯托克斯转移和溶色.
对NAE的敏感性和选择性的评估,包括检测极限的确定.
在过纸和片等各种基板上进行NAE检测的演示.

主要成果:

化合物4a-4e表现出理想的特性,如热/光稳定性和大的斯托克斯移位.
刚性结合和扭曲形状之间的平衡导致了D-A型光体中的DSE特性.
化合物4d和4e显示聚合诱导排放 (AIE) 由于分子构造和受限制的分子内旋转.
DSEgen 4e对NAE具有很高的敏感性,其检测极限为10-8M,并且具有抗干扰能力.
在溶液中,在过纸上和在片上实现了视觉NAE检测.

结论:

基于佐的新型DSE基因已成功合成,证明了对NAE检测的增强性能.
设计的DSEgens为NAE的化学探针应用提供了一个灵敏,稳定和视觉上独特的平台.
这些发现支持DSEgens作为爆炸物检测和化学传感的可靠工具的潜力.

关键词:

聚合引发的排放量聚合引发的排放量佐克萨尔 (benzoxazole) 是一种一种这是一个D-π-A系统.检测应用程序检测应用程序双状态排放的二重状态排放索尔瓦托克罗米斯主义是一个问题.

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