Benzothiazole integrated into a cryptand for ESIPT-based selective chemosensor for Zn2+ ions

A novel benzothiazole-based cryptand was designed and synthesized, and it exhibited high fluorescence intensity in the presence of Zn2+ ions based on the metal chelation inhibition of the excited state intramolecular proton transfer (ESIPT) process. The structure of the cryptand was confirmed by NMR...

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Published in:Dalton transactions : an international journal of inorganic chemistry 2019-06, Vol.48 (22), p.7801-7808
Main Authors: Gupta, Mayank, Sahana, Sunanda, Sharma, Vivekanand, Bharadwaj, Parimal K
Format: Article
Language:English
Subjects:
Chelation
Chemical sensors
Chemoreceptors
Crystallography
Fluorescence
NMR
Nuclear magnetic resonance
Selectivity
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container_title Dalton transactions : an international journal of inorganic chemistry
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creator Gupta, Mayank
Sahana, Sunanda
Sharma, Vivekanand
Bharadwaj, Parimal K
description A novel benzothiazole-based cryptand was designed and synthesized, and it exhibited high fluorescence intensity in the presence of Zn2+ ions based on the metal chelation inhibition of the excited state intramolecular proton transfer (ESIPT) process. The structure of the cryptand was confirmed by NMR, mass spectroscopy and X-ray crystallography. Importantly, this probe showed high selectivity over other biologically relevant metal ions and anions and a detection limit of 0.20 μM, which is acceptable within the EPA (US) limit.
doi_str_mv 10.1039/c9dt00548j
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source Royal Society of Chemistry:Jisc Collections:Royal Society of Chemistry Read and Publish 2022-2024 (reading list)
subjects Chelation
Chemical sensors
Chemoreceptors
Crystallography
Fluorescence
NMR
Nuclear magnetic resonance
Selectivity
title Benzothiazole integrated into a cryptand for ESIPT-based selective chemosensor for Zn2+ ions
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