Investigation on the photophysical properties of ESPT inspired salicylaldehyde-based sensor for fluoride sensing

Kai Liu; Xiaojun Zhao; Qingxiang Liu; Jianzhong Huo; Xing Wang; Yanping Wu

doi:10.1016/j.saa.2014.12.092

Investigation on the photophysical properties of ESPT inspired salicylaldehyde-based sensor for fluoride sensing

Spectrochim Acta A Mol Biomol Spectrosc. 2015 Apr 5:140:198-201. doi: 10.1016/j.saa.2014.12.092. Epub 2015 Jan 3.

Authors

Kai Liu¹, Xiaojun Zhao², Qingxiang Liu², Jianzhong Huo³, Xing Wang³, Yanping Wu²

Affiliations

¹ Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Normal University, Tianjin 300387, China. Electronic address: hxxylk@mail.tjnu.edu.cn.
² Tianjin Key Laboratory of Structure and Performance for Functional Molecule, College of Chemistry, Tianjin Normal University, Tianjin 300387, China.
³ Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Normal University, Tianjin 300387, China.

PMID: 25594213
DOI: 10.1016/j.saa.2014.12.092

Abstract

A simple, highly selective and sensitive chemosensor (E)-2-((quinolin-8-ylimino) methyl) phenol (QP) has been developed for the fluoride, as demonstrated by the photophysical properties obtained by UV-vis and fluorescent methods. Excited-state inter/intramolecular proton transfer (ESPT) was suggested to be responsible for the fluoride-induced 'turn on' fluorescence and the blue shift of 25 nm in the emission spectrum.

Keywords: Anion recognition; Deprotonation; ESPT; ‘Turn on’ fluorescence.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Aldehydes / chemistry*
Fluorescent Dyes / chemistry*
Fluorides / analysis*
Protons
Quinolines / chemistry*
Spectrometry, Fluorescence
Spectrophotometry, Ultraviolet

Substances

Aldehydes
Fluorescent Dyes
Protons
Quinolines
salicylaldehyde
Fluorides