Chem. J. Chinese Universities ›› 2022, Vol. 43 ›› Issue (3): 20210765.doi: 10.7503/cjcu20210765

• Analytical Chemistry • Previous Articles     Next Articles

Bis-naphthalimide Derivatives for Picronitric Acid Detection in Aqueous Solution

ZHAO Yongmei1, MU Yeshu2,3, HONG Chen, LUO Wen3(), TIAN Zhiyong2()   

  1. 1.Pharmaceutical Engineering Department,Henan Vocational College of Applied Technology,Kaifeng 475004,China
    2.School of Pharmacy
    3.Key Laboratory of Natural Medicine and Immuno?Engineering
    4.Huaihe Hospital,Henan University,Kaifeng 475004,China
  • Received:2021-11-08 Online:2022-03-10 Published:2022-01-13
  • Contact: LUO Wen E-mail:luowen83@163.com;tzynew@163.com
  • Supported by:
    the National Natural Science Foundation of China(U1704176);the Science and Technology Planning Project of Henan Province, China(212102311030);the Program of Henan Vocational College of Applied Technology, China(2020-HJ-22)

Abstract:

A novel bis-naphthalimide derivative(Bis-Nph) was designed, synthesized and characterized by nuclear magnetic resonance spectroscopy(NMR) and high resolution mass spectrometry(HRMS). Compound Bis-Nph presented typical intramolecular charge transfer(ICT) emission and aggregation-induced enhanced emission(AIEE). It could be used as a fluorescent probe to detect 2,4,6-trinitrophenol(TNP) in aqueous solution, the calculated limit of detection is 5.8×10-7 mol/L. The mechanism for sensing TNP was investigated using 1H NMR. The proton transfers from TNP to Bis-Nph and blocks the ICT emission, and causes the fluorescence to be quenched remarkably. Further, Bis-Nph showed low cytotoxicity and could be made into test strips for rapid TNP detection.

Key words: Naphthalimide, Fluorescent probe, Aggregation-induced enhanced emission, 2, 4, 6-Trinitrophenol

CLC Number: 

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