一种Rhodol型氟离子荧光探针的合成及性能研究

Synthesis and Performance of Rhodol Fluoroion Fluorescent Probe

氟离子作为一种特殊的氢键受体,对硅、硼有很强的亲和力,被认为是最重要的阴离子之一。以Rhodol类衍生物和叔丁基二苯基氯硅烷为原料,合成了一种可用于检测氟离子的新型荧光探针。通过红外光谱、元素分析、飞行质谱、热重分析、核磁共振氢谱和核磁共振碳谱对探针的结构进行表征。通过荧光和紫外-可见光谱法研究探针对氟离子的检测能力。实验结果表明,氟离子浓度范围为0~10μmol/L时,荧光强度与氟离子浓度的关系曲线为y=138.01x+3859.8;紫外吸光度与氟离子浓度的关系曲线为y=0.0133x+0.3296;说明探针可用于溶液中氟离子的定量检测。

As a special hydrogen bond receptor,fluorine ion has a strong affinity for silicon and boron and is considered to be one of the most important anions.Using Rhodol derivatives and tert-butyldiphenylchlorosilane as raw materials,a new fluorescent probe for the detection of fluorine ions was synthesized.The structure of the probe was confirmed by IR,elemental analysis,MS,TGA,1HNMR and 13CNMR.The detection ability of the probe for fluorine ions was investigated by fluorescence and UV-Vis spectroscopy.The results showed when the concentration range of fluorine ion was 0~10μmol/L,the relation curve between fluorescence intensity and fluorine ion concentration was y=138.01x+3859.8 and the relation curve between ultraviolet absorbance and fluorine ion concentration was y=0.0133x+0.3296,which showed that the probe can be used for quantitative detection of fluorine ion in solution.