有机化学 ›› 2019, Vol. 39 ›› Issue (6): 1753-1760.DOI: 10.6023/cjoc201811024 上一篇    下一篇

所属专题: 荧光探针-生物传感合辑 金属有机化学

研究论文

乙酰基二茂铁苯并噻唑探针对Al3+, Cr3+, Fe3+识别性能的研究

贾慧劼, 韩利民, 竺宁, 高媛媛, 王亚琦, 索全伶   

  1. 内蒙古工业大学化工学院 呼和浩特 010051
  • 收稿日期:2018-11-19 修回日期:2019-01-24 发布日期:2019-03-21
  • 通讯作者: 索全伶 E-mail:szj010062@163.com
  • 基金资助:

    国家自然科学基金(Nos.21062011,21266019,21761026,21762032)资助项目.

A Study on Recognition Property of Acetylferrocenyl Benzothiazole to Al3+, Cr3+ and Fe3+

Jia Huijie, Han Limin, Zhu Ning, Gao Yuanyuan, Wang Yaqi, Suo Quanling   

  1. Chemical Engineering College, Inner Mongolia University of Technology, Hohhot 010051
  • Received:2018-11-19 Revised:2019-01-24 Published:2019-03-21
  • Contact: 10.6023/cjoc201811024 E-mail:szj010062@163.com
  • Supported by:

    Project supported by the National Nutural Science Foumdation of China (Nos. 21062011, 21266019, 21761026, 21762032).

以二茂铁甲醛为起始原料,与邻氨基苯硫酚进行环合反应,得到产物2-二茂铁基苯并噻唑,然后进行乙酰化反应,最终得到2-(1'-乙酰基二茂铁基)苯并噻唑(FcSO)探针分子.谱学表征和X射线单晶衍射分析证实了探针FcSO的晶体和分子结构.通过紫外可见光谱、荧光光谱和电化学分析三种分析方法,详细研究了探针FcSO对溶液中三价金属离子Al3+,Cr3+,Fe3+的识别性能.研究结果表明,三种分析方法均能对特定三价金属离子进行有效识别,荧光分析方法抗干扰能力较强,对三价金属离子Al3+,Cr3+,Fe3+的最低检测限分别是7.456×10-6,3.72×10-6和1.35×10-5 mol/L.1H NMR研究结果表明,探针FcSO分子结构中的乙酰基、二茂铁基和苯并噻唑基在识别三价金属离子Al3+,Cr3+,Fe3+过程中均发挥了重要作用.

关键词: 晶体结构, 乙酰基二茂铁苯并噻唑探针, 多种识别方法, 三价金属离子

2-(1'-Acetyl-ferrocenyl) benzothiazole (FcSO) probe was synthesized by the acetylization reaction of 2-ferrocenyl benzothiazole, which was obtained from the cyclization reaction of ferrocenecarboxaldehyde with 2-aminothiophenol. Crystal and molecule structures of FcSO probe were characterized by spectra methods and X-ray single crystal diffraction analysis. The recognition ability to Al3+, Cr3+, Fe3+ ions of FcSO probe was researched by three analytical methods of UV-Vis, fluorescence and electrochemistry. The results show that the recognition to Al3+, Cr3+, Fe3+ ions of FcSO probe is effective via three channels, and the detection limits of FcSO probe to Al3+, Cr3+, Fe3+ ions are 7.456×10-6, 3.72×10-6 and 1.35×10-5 mol/L, respectively. 1H NMR research results indicate that the acetyl, ferrocenyl and benzothiazole groups of FcSO probe play important roles in recognizing Al3+, Cr3+, Fe3+ ions.

Key words: crystal structure, acetyl-ferrocenyl-benzothiazole probe, multi recognition method, trivalent metal ion