Volume 5, Issue 38 p. 11976-11985
Full Paper

A Harmonized Applied and Theoretical Exploration for Nanomolar Level Recognition of Perilous F and CN by Multichannel Chemosensor: Proposition of Hg2+-Mediated Logic Gate Imitator

Amita Mondal

Amita Mondal

Surface Engineering & Tribology Group CSIR-Central Mechanical Engineering Research Institute, Mahatma Gandhi Avenue, Durgapur, 713209 India

Department of Chemistry, National Institute of Technology Mahatma Gandhi Avenue, Durgapur, 713209, West Bengal India

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Abhijit Hazra

Abhijit Hazra

Surface Engineering & Tribology Group CSIR-Central Mechanical Engineering Research Institute, Mahatma Gandhi Avenue, Durgapur, 713209 India

Academy of Scientific and Innovative Research (AcSIR), Mahatma Gandhi Avenue, Ghaziabad, 201002, Uttar Pradesh West Bengal, India

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Dr. Jitamanyu Chakrabarty

Dr. Jitamanyu Chakrabarty

Department of Chemistry, National Institute of Technology Mahatma Gandhi Avenue, Durgapur, 713209, West Bengal India

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Dr. Naresh C. Murmu

Dr. Naresh C. Murmu

Surface Engineering & Tribology Group CSIR-Central Mechanical Engineering Research Institute, Mahatma Gandhi Avenue, Durgapur, 713209 India

Academy of Scientific and Innovative Research (AcSIR), Mahatma Gandhi Avenue, Ghaziabad, 201002, Uttar Pradesh West Bengal, India

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Dr. Priyabrata Banerjee

Corresponding Author

Dr. Priyabrata Banerjee

Surface Engineering & Tribology Group CSIR-Central Mechanical Engineering Research Institute, Mahatma Gandhi Avenue, Durgapur, 713209 India

Academy of Scientific and Innovative Research (AcSIR), Mahatma Gandhi Avenue, Ghaziabad, 201002, Uttar Pradesh West Bengal, India

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First published: 13 October 2020
Citations: 8

Graphical Abstract

In the pursuit of detecting F and CN selectively by a single multichannel chemosensor, PMA (9-anthracenecarboxaldehyde pentafluorophenylhydrazone) has been synthesized, which can detect F (detection limit of 76 nm) more promisingly in compared to CN (detection limit of 92 nm) owing to the smaller size and more electronegativity of F. Moreover, all the theoretical outcomes along with potential energy surface scanning well corroborated with the experimental findings affirming stronger affinity of PMA towards F.

Abstract

An inimitable Schiff-base chemosensor PMA (9-anthracenecarboxaldehyde pentafluorophenylhydrazone) was premeditated and implicated with the aim of detecting F and CN in semi-aqueous medium. Highly photostable, multichannel sensory probe, PMA (with 31 % quantum yield) exhibited amusing sensing efficiency towards F and CN by dint of colorimetric, fluorimetric as well as electrochemical alterations, with a very low detection limit (76 nM for F and 92 nM CN). However, all the experimental outcomes evidenced PMA to be more sensitive towards F than CN owing to the more electronegativity and smaller size of F. The spectroscopic characterizations of the chemosensor along with the sensing studies were performed by more than a few erudite analytical tools, whereas the theoretical calculations also substantiated the experimental consequences. Here the thorough investigation on the theoretical aspect was performed to ensure the effective and plausible reason behind different sensitivity towards these two perilous anions. Moreover, the recyclability of PMA upon simultaneous addition of F/CN and Hg2+ also helped to intend a three input logical circuitry.

Conflict of interest

The authors declare no conflict of interest.