A fluorescence turn-on chemosensor for hydrogen sulfate anion based on quinoline and naphthalimide

Zaoli Luo; Kai Yin; Zhu Yu; Mengxue Chen; Yan Li; Jun Ren

doi:10.1016/j.saa.2016.06.022

A fluorescence turn-on chemosensor for hydrogen sulfate anion based on quinoline and naphthalimide

Spectrochim Acta A Mol Biomol Spectrosc. 2016 Dec 5:169:38-44. doi: 10.1016/j.saa.2016.06.022. Epub 2016 Jun 15.

Authors

Zaoli Luo¹, Kai Yin¹, Zhu Yu¹, Mengxue Chen¹, Yan Li¹, Jun Ren²

Affiliations

¹ Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials & Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Ministry of Education & College of Chemistry & Chemical Engineering, Hubei University, Wuhan 430062, PR China.
² Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials & Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Ministry of Education & College of Chemistry & Chemical Engineering, Hubei University, Wuhan 430062, PR China. Electronic address: renjun@hubu.edu.cn.

PMID: 27323316
DOI: 10.1016/j.saa.2016.06.022

Abstract

A new fluorescence turn-on chemosensor 1 based on quinoline and naphthalimide was prepared and its anion sensing toward various anions behavior was explored in this paper. Sensor 1 exhibited a highly selective fluorescent response toward HSO4(-) with an 8-fold fluorescence intensity enhancement in the presence of 10equiv. of HSO4(-) in DMSO-H2O (1/1, v/v) solution. The sensor also displayed high sensitivity to hydrogen sulfate and the detection limit was calculated to be 7.79×10(-7)M. The sensing mechanism has been suggested to proceed via a hydrolysis process of the Schiff base group. The hydrolysis product has been isolated and further identified by (1)H NMR and MS.

Keywords: Fluorescent chemosensor; Hydrogen sulfate; Hydrolysis; Naphthalimide; Quinoline.