有机化学 ›› 2017, Vol. 37 ›› Issue (4): 889-895.DOI: 10.6023/cjoc201611008 上一篇    下一篇

研究论文

一种咪唑并吩嗪内酰胺反应型识别氰离子的荧光探针

李翔, 林奇, 曲文娟, 李乔, 程晓斌, 李文婷, 张有明, 姚虹, 魏太保   

  1. 西北师范大学化学化工学院 教育部生态环境相关材料重点实验室 甘肃省高分子材料重点实验室 兰州 730070
  • 收稿日期:2016-11-03 修回日期:2016-12-29 发布日期:2017-01-17
  • 通讯作者: 魏太保 E-mail:weitaibao@126.com
  • 基金资助:

    国家自然科学基金(Nos.21662031,21661028,21574104,21262032)资助项目.

A Novel Imidazophenazine Lactam Reaction Type Recognition Cyanide Ion Fluorescence Probe

Li Xiang, Lin Qi, Qu Wenjuan, Li Qiao, Chen Xiaobin, Li Wenting, Zhang Youming, Yao Hong, Wei Taibao   

  1. College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070
  • Received:2016-11-03 Revised:2016-12-29 Published:2017-01-17
  • Contact: 10.6023/cjoc201611008 E-mail:weitaibao@126.com
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 21662031, 21661028, 21574104, 21262032).

设计合成了一种新型咪唑并吩嗪内酰胺荧光传感器分子(S1),通过核磁共振氢谱、碳谱和高分辨质谱等手段对其结构进行了表征,并测定了S1在二甲基亚砜(DMSO)溶液中的荧光光谱,其最大荧光发射波长为524 nm. S1的DMSO溶液具有亮黄色荧光. 当在S1的DMSO溶液中分别加入F-,Cl-,Br-,I-,AcO-,H2PO4-,HSO4-,ClO4-,和SCN-等阴离子后,发现只有CN-的加入使S1的荧光光谱出现明显的下降并发生红移. 其溶液荧光颜色由黄色变为橘红色,说明S1对CN-具有良好的专一选择性. 抗干扰实验结果表明,这一识别过程不受其它阴离子干扰. 通过计算得到,S1对CN-的荧光光谱最低检测限为9.96×10-7 mol/L,这一数值低于世界卫生组织所规定的饮用水中氰离子含量. 机理研究表明,S1是一种反应型识别CN-的荧光传感器. 此外,将S1负载于固态硅胶之上,制备成固体CN-识别材料,并成功用于对固体NaCN的识别和对CN-水溶液的检测.

关键词: 吩嗪衍生物, 荧光传感器, 阴离子识别

A novel imidazophenazine lactam fluorescence chemosensor (S1) was designed, synthesized and characterized by 1H NMR, 13C NMR and HRMS techniques. Fluorescence spectra of S1 in dimethyl sulfoxide (DMSO) solution were measured. Its maximum emission wavelength was 524 nm. The DMSO solution of S1 has bright yellow fluorescence. Respectively, to the S1 solution add F-, Cl-, Br-, I-, AcO-, H2PO4-, HSO4-, ClO4-, and SCN-, the fluorescent color of the solution didn't change. Only the CN- addition, the fluorescent color of the S1 solution changed from yellow to orange-red, indicating that S1 has good specific selectivity for CN-. The results of anti-disturbance experiment demonstrated that S1 detect CN- without interference from other anions. By calculation, the linear of the fluorescence of the sensor for CN- is 9.96×10-7. This value is lower than the World Health Organization (WHO) provisions of the cyanide content of drinking water. Mechanism studies show that S1 is a fluorescence sensor by reactive recognition CN-. In addition, the application of sensor S1 supported on solid silica gel was used as a solid material to detecting solid NaCN and CN- in pure water.

Key words: phenazine derivative, fluorescence sensor, detecting anions