Concepedia

Coumarin based dual switching fluorescent ‘turn-on’ chemosensor for selective detection of Zn<sup>2+</sup> and HSO<sub>4</sub><sup>−</sup>: an experimental and theoretical study

Deblina Sarkar, Ajoy Kumar Pramanik, Tapan Kumar Mondal

RSC Advances · 2014 · 55 citations · 60 references

DOI

Concepts

Abstract

A coumarin based fluorescence ‘turn-on' chemosensor (HL) for the selective detection of Zn<sup>2+</sup> and HSO<sup>4¬</sup> has been developed. Emission intensity of HL is enhanced by 27 and 17 fold in presence of Zn<sup>2+</sup> and HSO<sup>4¬</sup> respectively. Theoretical study interprets the electronic structure and sensing mechanism of HL.

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