罗丹明-联吡啶基荧光探针乙腈溶液中对汞离子的选择性识别研究

Study on recognition preference to Hg^+ of Rhodamine-Bipydine for Mercury(II)in CH_3CN solution

本论文报道了含有罗丹明和2,2’-联吡啶的荧光探针(L)的设计、合成以及对汞离子的选择性识别和荧光性质。当向L的乙腈溶液中加入汞离子时,荧光强度会增强,同时溶液的颜色由无色变为粉红色,因此通过肉眼观察,探针L就可以检测溶液中的汞离子。

It was presented that the design,syntheses,selective and photophysical properties and Hg2+-binding of the rhodamine derivative(L)that derived from Rhodamine6Gfluorophore and a 2,2'-bipydine group.After mercury(II) was added to the CH3CN solution of chemosensor L,L affords turn-on fluorescence enhancement and a color change from colorless to pink-red,which indicated that the sensor can serve as a sensitive'naked-eye'indicator for mercury ion.