Colorimetric and fluorimetric chemosensor based on upper rim-functionalized calix[4]arene for selective detection of fluoride ion

Mohammad Nemati; Rahman Hosseinzadeh; Maryam Mohadjerani

doi:10.1016/j.saa.2020.118950

Colorimetric and fluorimetric chemosensor based on upper rim-functionalized calix[4]arene for selective detection of fluoride ion

Spectrochim Acta A Mol Biomol Spectrosc. 2021 Jan 15:245:118950. doi: 10.1016/j.saa.2020.118950. Epub 2020 Sep 17.

Authors

Mohammad Nemati¹, Rahman Hosseinzadeh², Maryam Mohadjerani³

Affiliations

¹ Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran. Electronic address: Mohamad_mnd@yahoo.com.
² Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran. Electronic address: r.hosseinzadeh@umz.ac.ir.
³ Department of Molecular and Cell Biology, Faculty of Basic Science, University of Mazandaran, Babolsar, Iran.

PMID: 32980760
DOI: 10.1016/j.saa.2020.118950

Abstract

A new colorimetric and fluorescent chemosensor for fluoride anion based on calix [4]arene bearing four sulfonamide-fluorenone subunits on the upper rim was conveniently synthesized. It showed a remarkable color change as well as the fluorescence quenching upon addition of F^- even in the presence of a wide range of anions in DMSO. The binding property of L with F^- was studied by a combination of various spectroscopic techniques, such as absorption and emission titration, Job's plot and ¹H NMR titration. It is anticipated that this design with functional group attached to upper rim of calix[4]arene platform can provide a new approach for the development of F^- chemosensor.

Keywords: Calix[4]arene; Chromogenic; Fluoride; Fluorogenic sensor; Sulfonamide-fluorenone.