Charge-Transfer-Induced Fluorescence Quenching of Anthracene Derivatives and Selective Detection of Picric Acid
作者:Dines Chandra Santra、Manas Kumar Bera、Pradip Kumar Sukul、Sudip Malik
DOI:10.1002/chem.201504126
日期:2016.2.5
2,6‐Divinylpyridine‐appended anthracene derivatives flanked by two alkyl chains at the 9,10‐position of the core have been designed, synthesized, and characterized by NMR, MALDI‐TOF, FTIR, and single‐crystal XRD. These anthracene derivatives are able to recognize picric acid (2,4,6‐trinitrophenol, PA) selectively down to parts per billion (ppb) level in aqueous as well as nonaqueous medium. Fluorescence
已经设计,合成并通过核磁共振,MALDI-TOF,FTIR和单晶XRD对2,6-二乙烯基吡啶附加的蒽衍生物两侧的烷基在侧链的9,10-位进行了合成和表征。这些蒽衍生物能够在水性和非水性介质中选择性识别低至十亿分之几(ppb)含量的苦味酸(2,4,6-三硝基苯酚,PA)。即使添加了其他竞争性类似物,例如2,4-二硝基苯酚(2,4-DNP),4-硝基苯酚(NP),硝基苯( NB),苯甲酸(BA)和苯酚(PH)。这些衍生物对PA的高敏感性被认为是质子诱导的分子内电荷转移(ICT)以及电子从富电子蒽向贫电子PA转移的综合作用。而且,已经通过使用不同的底物成功地证明了在固态下对PA的视觉检测。