A Facilely Synthesized Dual‐State Emission Platform for Picric Acid Detection and Latent Fingerprint Visualization
作者:Duo Xi、Yanzi Xu、Ruohan Xu、Zhi Wang、Daomeng Liu、Qifei Shen、Ling Yue、Dongfeng Dang、Lingjie Meng
DOI:10.1002/chem.201905169
日期:2020.2.26
highly efficient, dual-state emission platform for picric acid (PA) detection and latent fingerprint (LFP) visualization, flexible alkyl chains have been facilely attached to the commercial organic dye 3,4,9,10-perylenetetracarboxylic dianhydride to provide the target perylenetetracarboxylate molecules PTCA-C4, PTCA-C6, and PTCA-C12. Interestingly, all these molecules exhibited impressive fluorescence
为了实现用于苦味酸(PA)检测和潜在指纹(LFP)可视化的高效双态发射平台,已将柔性烷基链轻松连接到商品有机染料3,4,9,10-per四羧酸二酐上,以提供目标per四羧酸盐分子PTCA-C4,PTCA-C6和PTCA-C12。有趣的是,所有这些分子在稀溶液中均表现出令人印象深刻的荧光特性,并具有约93.0%的高光致发光量子产率(PLQYs)。另外,在固态下观察到发射特征,因为烷基链阻止了紧密的分子堆积,特别是对于具有49.0%的高PLQY值的PTCA-C6。得益于溶液和聚集体中令人印象深刻的荧光性能,PTCA-C6用作PA检测和LFP可视化的双态发射平台。例如,在PA检测研究中观察到溶液中的双响应荧光猝灭,导致较高的猝灭常数(KSV)和较低的检测极限值。此外,基于PTCA-C6的指纹粉在荧光强度和分辨率方面在各种基材上也表现出令人印象深刻的性能,清楚地提供了潜在指纹的特定细节。这些结果表