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基于罗丹明6G衍生物的Hg²⁺选择性荧光探针的合成与性质

Synthesis and Character of Hg²⁺ Fluorescence Probe Based on Rhodamine 6G

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【Author】 WEN Xin;GONG Hai-yang;MAO Hui;ZHOU Yue;QIAO Rui;CHEN Shui-sheng;YANG Song;XU Hua-jie;College of Chemistry and Material Engineering,Fuyang Normal University;

【机构】阜阳师范学院化学与材料工程学院；

【摘要】基于罗丹明6G类化合物内酰胺环受金属离子诱导可以发生开环反应的特性,设计合成得到了两个罗丹明类化合物LDMO和LDMS.研究结果表明,由于硫原子的引入,在乙腈/Tris-HCl缓冲溶液中,化合物LDMS对Hg2+的识别能力显著提高,在荧光增强的同时对Hg2+具有明显的目视比色响应,可以直接观察到溶液颜色变化.利用两种方法确定了LDMS对Hg2+的结合比为1:1,并推测了可能的识别机理.更多还原

【Abstract】 In this paper,LDMO and LMDS based on rhodamine 6G were synthesized and characterized. Compared with LDMO,LDMS exhibited high selectivity to Hg2 + over other metal cations in acetonitrile- Tris HCl buffer solution. And the "turn- on"response could be simply detected by UV and FL. Furthermore,a clear color change from colorless to red could be observed by naked eyes.更多还原