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Fluorimetric Recognition of Nerve Agent Mimic Diethylchlorophosphate Along with Cu2+/Hg2+ Ions Using Imidazole Possessing Sensor

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Abstract

An imidazole possessing sensor (1) has been designed and developed by simple one step reaction and characterization was done by using common spectroscopic methods. The fluorimetric sensing of nerve agent mimic, DCP, was carried out by observing blue shift in spectra accompanied with quenching in semi-aqueous solvent. The sensor was found proficient for the detection of DCP amongst other phosphates with detection limit of 69 nM. Furthermore, upon incorporation of various metal ions to CH3CN:H2O (4:1, v/v) solution of 1 (λex 340 nm), the fluorescent probe turned non-fluorescent only in presence of Cu2+/Hg2+ ions. This was accompanied by fluorescent color change from light blue to yellow in case of Hg2+ and colorless in case of Cu2+ ions. Moreover, practical applications of sensor 1 were investigated for recognition of Cu2+ and Hg2+ ions in real water samples along with the detection of DCP in soil samples from different areas. Differential emission changes observed with addition of Hg2+ ions and DCP led to observation of “NOR” and an “INHIBIT” molecular photonic logic operations at 446 and 385 nm, respectively.

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The data provided in the manuscript is original and will be made available at any time on request basis.

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Acknowledgements

For recording the NMR, FTIR and HRMS spectra, the authors are gratified to SAIF, Panjab University Chandigarh.

Funding

The authors are greatly obliged to CSIR-New Delhi (File No.-09/135(0911)2020 EMR-I) and DST PURSE-II (Grant—48/RPC) for funding.

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  1. Department of Chemistry, Panjab University, Chandigarh, 160014, India

    Gitanjali Jindal & Navneet Kaur

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  1. Gitanjali Jindal
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Gitanjali Jindal contributed towards conceptualization, data curation, formal analysis, visualization, writing-original draft. Navneet Kaur gave contribution for methodology, writing-review & editing, supervision, project administration.

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Correspondence to Navneet Kaur.

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Jindal, G., Kaur, N. Fluorimetric Recognition of Nerve Agent Mimic Diethylchlorophosphate Along with Cu2+/Hg2+ Ions Using Imidazole Possessing Sensor. J Fluoresc 33, 359–371 (2023). https://doi.org/10.1007/s10895-022-03069-z

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