新型罗丹明B类荧光探针的合成及其对Fe^(3+)识别研究  

Synthesis of Novel Rhodamine B Fluorescent Probe and Recognition Study to Fe^(3+)

作　　者：孟文斐[1] 杨美盼[1] 成昭[1] 李少妮[1] 杨秉勤[1] 

机构地区：[1]西北大学化学与材料科学学院合成与天然功能分子化学教育部重点实验室,西安710069

出　　处：《有机化学》2014年第2期398-402,共5页Chinese Journal of Organic Chemistry

基　　金：国家自然科学基金(No.21172178)资助项目~~

摘　　要：以罗丹明B和间氨基吡啶缩合反应得到新型罗丹明B衍生物L1,并用1H NMR,IR,HRMS-ESI及X射线对其结构进行了确证.通过荧光光谱法研究了目标物L1在水溶液中与金属离子的识别特性.结果表明目标物L1作为荧光探针可选择性的比色识别Fe3+,并且受常见离子的干扰较小.探针L1的荧光强度与Fe3+浓度(1×10-6~9×10-6 mol/L)呈较好的线性关系.A novel rhodamine B derivative L1 was synthesized facilely by the condensation reaction of rhodamine B hydrazide and 3-aminopyridine, and its structure was characterized by 1H NMR, IR, HRMS-ESI and X-ray techniques. The recognition properties of the target compound L1 with metal ions had been investigated in water solution by the fuorescence spectrophotometry. The results showed that the probe LI exhibited the selective colorimetric recognition to Fe3＋than other metal ions. When the concentration of Fe3＋ was in the range of 1×10-6～9×10-6mol/L, there was a good linearity between the fluorescence intensity of the probe LI and the concentration of Fe3＋.

关 键 词：荧光探针 罗丹明 铁离子 识别 荧光响应 

分 类 号：O657.3[理学—分析化学]