Bumagina Natalia A, Antina Elena V, Nikonova Anna Yu, Berezin Mikhail B, Ksenofontov Alexander A, Vyugin Anatoly I
G. A. Krestov Institute of Solution Chemistry of Russian academy of Sciences 1 Akademicheskaya St., Ivanovo, Russia, 153045.
Inorganic Chemistry Department, Ivanovo State University of Chemistry and Technology, 7 Sheremetevskij prosp, Ivanovo, Russia, 153000.
J Fluoresc. 2016 Nov;26(6):1967-1974. doi: 10.1007/s10895-016-1890-4. Epub 2016 Aug 1.
3,3',5,5'-Tetraphenyl-2,2'-dipyrromethene was described as a highly sensitive and selective Off-on fluorescent colorimetric chemosensor for Zn based on the chelation-enhanced fluorescence (CHEF) effect. The reaction of dipyrromethene ligand with Zn induces the formation of the [ZnL] complex, which exhibits the increasing fluorescence in 120 fold compared with ligand in the propanol-1/cyclohexane (1:30) binary mixture. The Zn detection limit was 1.4 × 10 М. The UV-Vis and fluorescence spectroscopic studies demonstrated that the dipyrromethene sensor was highly selective toward Zn cations over other metal ions (Na, Mg, Co, Ni, Fe, Cu, Mn, Cd and Pb), excluding Hg.
3,3',5,5'-四苯基-2,2'-二吡咯亚甲基被描述为一种基于螯合增强荧光(CHEF)效应的用于锌的高灵敏度和选择性的开-关型荧光比色化学传感器。二吡咯亚甲基配体与锌的反应诱导形成[ZnL]配合物,该配合物在丙醇-1/环己烷(1:30)二元混合物中与配体相比荧光增强了120倍。锌的检测限为1.4×10⁻⁶ М。紫外-可见光谱和荧光光谱研究表明,二吡咯亚甲基传感器对锌阳离子具有高度选择性,对其他金属离子(钠、镁、钴、镍、铁、铜、锰、镉和铅)具有选择性,汞除外。