Fluorescence quenching based detection of nitroaromatics using luminescent triphenylamine carboxylic acids

Abstract Detection of nitroaromatics employing greener techniques has been one of the most active research fields in chemistry. A series of triphenylamine (TPA) functionalized carboxylic acids were synthesized and characterized using various spectroscopic techniques including single-crystal X-ray di...

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Autores principales:	Aamnayee Mishra, R. Dheepika, P. A. Parvathy, P. M. Imran, N. S. P. Bhuvanesh, S. Nagarajan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5873cc956cc44a07bbd2695619c8686c
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spelling	oai:doaj.org-article:5873cc956cc44a07bbd2695619c8686c2021-12-02T18:51:07ZFluorescence quenching based detection of nitroaromatics using luminescent triphenylamine carboxylic acids10.1038/s41598-021-97832-02045-2322https://doaj.org/article/5873cc956cc44a07bbd2695619c8686c2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97832-0https://doaj.org/toc/2045-2322Abstract Detection of nitroaromatics employing greener techniques has been one of the most active research fields in chemistry. A series of triphenylamine (TPA) functionalized carboxylic acids were synthesized and characterized using various spectroscopic techniques including single-crystal X-ray diffraction analysis. The interaction of carboxylic acid-decorated TPAs with nitroaromatic compounds was photophysically explored using absorption and emission spectroscopy. Stern–Volmer plot accounts for the appreciable quenching constant of the TPA-acids. Density functional theory calculations were carried out to study the new compounds' frontier molecular orbital energy levels and the possible interactions with picrate anion and revealed an unusual charge transfer interaction between acids and picrate anion. The contact mode detection shows the TPA-acids can be used as dip-strip sensors for picric acid detection.Aamnayee MishraR. DheepikaP. A. ParvathyP. M. ImranN. S. P. BhuvaneshS. NagarajanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Aamnayee Mishra R. Dheepika P. A. Parvathy P. M. Imran N. S. P. Bhuvanesh S. Nagarajan Fluorescence quenching based detection of nitroaromatics using luminescent triphenylamine carboxylic acids
description	Abstract Detection of nitroaromatics employing greener techniques has been one of the most active research fields in chemistry. A series of triphenylamine (TPA) functionalized carboxylic acids were synthesized and characterized using various spectroscopic techniques including single-crystal X-ray diffraction analysis. The interaction of carboxylic acid-decorated TPAs with nitroaromatic compounds was photophysically explored using absorption and emission spectroscopy. Stern–Volmer plot accounts for the appreciable quenching constant of the TPA-acids. Density functional theory calculations were carried out to study the new compounds' frontier molecular orbital energy levels and the possible interactions with picrate anion and revealed an unusual charge transfer interaction between acids and picrate anion. The contact mode detection shows the TPA-acids can be used as dip-strip sensors for picric acid detection.
format	article
author	Aamnayee Mishra R. Dheepika P. A. Parvathy P. M. Imran N. S. P. Bhuvanesh S. Nagarajan
author_facet	Aamnayee Mishra R. Dheepika P. A. Parvathy P. M. Imran N. S. P. Bhuvanesh S. Nagarajan
author_sort	Aamnayee Mishra
title	Fluorescence quenching based detection of nitroaromatics using luminescent triphenylamine carboxylic acids
title_short	Fluorescence quenching based detection of nitroaromatics using luminescent triphenylamine carboxylic acids
title_full	Fluorescence quenching based detection of nitroaromatics using luminescent triphenylamine carboxylic acids
title_fullStr	Fluorescence quenching based detection of nitroaromatics using luminescent triphenylamine carboxylic acids
title_full_unstemmed	Fluorescence quenching based detection of nitroaromatics using luminescent triphenylamine carboxylic acids
title_sort	fluorescence quenching based detection of nitroaromatics using luminescent triphenylamine carboxylic acids
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/5873cc956cc44a07bbd2695619c8686c
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_version_	1718377447412465664

Fluorescence quenching based detection of nitroaromatics using luminescent triphenylamine carboxylic acids

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