A new 1,3,4-oxadiazole-based fluorescence chemosensor 1, N-(2-ethoxy-2-oxoethyl)-N-(5-(2-hydroxy-3,5-di-tert-butylphenyl)-[1,3,4]oxadiazol-2-yl)glycine ethyl ester, has been designed and synthesized. Its fluorescence properties and selectivity for various metal ions were investigated in detail. A prominent fluorescence enhancement only for Zn2+ was found in aqueous acetonitrile solution and the response mechanism of 1 was analyzed by time-resolved fluorescence decay and DFT calculations. Furthermore, the fluorescence imaging of Zn2+ in living cells was successfully applied.
一种新的1,3,4-恶二唑类荧光
化学传感器1,N-(2-乙氧基-2-氧乙基)-N-(5-(2-羟基-3,5-二
叔丁基苯基)-[1,3,4]恶二唑-2-基)甘
氨酸
乙酯,已经设计并合成。对其荧光性质和对各种
金属离子的选择性进行了详细研究。在
乙腈水溶液中,发现仅对Zn2+有明显的荧光增强,并通过时间分辨荧光衰减和DFT计算分析了1的反应机理。此外,活细胞中Zn2+的
荧光成像也成功应用。