A Fast-Response, Phenanthroimidazole-Based Fluorescent Probe for Selective Detection of HClO

Enhui Dai; Yumiao Sheng; Yunling Gao

doi:10.1007/s10895-023-03376-z

A Fast-Response, Phenanthroimidazole-Based Fluorescent Probe for Selective Detection of HClO

J Fluoresc. 2023 Aug 5. doi: 10.1007/s10895-023-03376-z. Online ahead of print.

Authors

Enhui Dai¹, Yumiao Sheng¹, Yunling Gao²

Affiliations

¹ State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China.
² State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China. gaoyl@zjut.edu.cn.

PMID: 37542588
DOI: 10.1007/s10895-023-03376-z

Abstract

A new phenanthroimidazole-based fluorescence probe for selective detection of HClO was synthesized and characterized using ¹HNMR, ¹³CNMR, IR, and HRMS. With benzenesulfonohydrazide as the identification group, the probe demonstrated a fast fluorescence response from yellow-green to blue when the HC = N double bond was oxidized and broken into an aldehyde group by HClO. The probe showed high selectivity and sensitivity towards HClO with approximately 4.5-fold fluorescence enhancement and has been successfully applied in the molecular logic gate, determination of HClO in environmental water samples, and portable HClO detection.

Keywords: Fluorescence probe; HClO; Logic gate; Phenanthroimidazole.