Colorimetric Cu(2+) Detection of (1E,2E)-1,2-Bis((1H-pyrrol-2-yl)methylene)hydrazine Using a Custom-Built Colorimeter

[Image: see text] The compound (1E,2E)-1,2-bis((1H-pyrrol-2-yl)methylene)hydrazine (1) was investigated for its chemosensor application. The colorimetric response of 1 with various ions was investigated, and the selective optical change upon mixing with Cu(2+) was found. The Cu(2+) binding stoichiom...

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Autores principales: Luangphai, Sasipan, Fongsiang, Jaturon, Thuptimdang, Pumis, Buddhiranon, Sasiwimon, Chanawanno, Kullapa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9730750/
https://www.ncbi.nlm.nih.gov/pubmed/36506133
http://dx.doi.org/10.1021/acsomega.2c06751
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author Luangphai, Sasipan
Fongsiang, Jaturon
Thuptimdang, Pumis
Buddhiranon, Sasiwimon
Chanawanno, Kullapa
author_facet Luangphai, Sasipan
Fongsiang, Jaturon
Thuptimdang, Pumis
Buddhiranon, Sasiwimon
Chanawanno, Kullapa
author_sort Luangphai, Sasipan
collection PubMed
description [Image: see text] The compound (1E,2E)-1,2-bis((1H-pyrrol-2-yl)methylene)hydrazine (1) was investigated for its chemosensor application. The colorimetric response of 1 with various ions was investigated, and the selective optical change upon mixing with Cu(2+) was found. The Cu(2+) binding stoichiometry of 1 derived from Job’s plot and the in silico study give us the tentative structural detail of the binding mode of 1 and Cu(2+) being 1:1. The binding constant between 1 and Cu(2+) from the Benesi–Hildebrand plot was 1.49 × 10(4) M(–1). The limit of detection of 1 in Cu(2+) detection was 0.64 μM (0.040 ppm), which is much lower than the WHO and US EPA maximum allowable Cu(2+) level in drinking water (2 and 1.3 ppm, respectively). The custom-built colorimeter demonstrates a good linear relationship between Cu(2+) concentration and electrical resistance (Ω) upon 1–Cu(2+) ion binding.
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spelling pubmed-97307502022-12-09 Colorimetric Cu(2+) Detection of (1E,2E)-1,2-Bis((1H-pyrrol-2-yl)methylene)hydrazine Using a Custom-Built Colorimeter Luangphai, Sasipan Fongsiang, Jaturon Thuptimdang, Pumis Buddhiranon, Sasiwimon Chanawanno, Kullapa ACS Omega [Image: see text] The compound (1E,2E)-1,2-bis((1H-pyrrol-2-yl)methylene)hydrazine (1) was investigated for its chemosensor application. The colorimetric response of 1 with various ions was investigated, and the selective optical change upon mixing with Cu(2+) was found. The Cu(2+) binding stoichiometry of 1 derived from Job’s plot and the in silico study give us the tentative structural detail of the binding mode of 1 and Cu(2+) being 1:1. The binding constant between 1 and Cu(2+) from the Benesi–Hildebrand plot was 1.49 × 10(4) M(–1). The limit of detection of 1 in Cu(2+) detection was 0.64 μM (0.040 ppm), which is much lower than the WHO and US EPA maximum allowable Cu(2+) level in drinking water (2 and 1.3 ppm, respectively). The custom-built colorimeter demonstrates a good linear relationship between Cu(2+) concentration and electrical resistance (Ω) upon 1–Cu(2+) ion binding. American Chemical Society 2022-11-23 /pmc/articles/PMC9730750/ /pubmed/36506133 http://dx.doi.org/10.1021/acsomega.2c06751 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Luangphai, Sasipan
Fongsiang, Jaturon
Thuptimdang, Pumis
Buddhiranon, Sasiwimon
Chanawanno, Kullapa
Colorimetric Cu(2+) Detection of (1E,2E)-1,2-Bis((1H-pyrrol-2-yl)methylene)hydrazine Using a Custom-Built Colorimeter
title Colorimetric Cu(2+) Detection of (1E,2E)-1,2-Bis((1H-pyrrol-2-yl)methylene)hydrazine Using a Custom-Built Colorimeter
title_full Colorimetric Cu(2+) Detection of (1E,2E)-1,2-Bis((1H-pyrrol-2-yl)methylene)hydrazine Using a Custom-Built Colorimeter
title_fullStr Colorimetric Cu(2+) Detection of (1E,2E)-1,2-Bis((1H-pyrrol-2-yl)methylene)hydrazine Using a Custom-Built Colorimeter
title_full_unstemmed Colorimetric Cu(2+) Detection of (1E,2E)-1,2-Bis((1H-pyrrol-2-yl)methylene)hydrazine Using a Custom-Built Colorimeter
title_short Colorimetric Cu(2+) Detection of (1E,2E)-1,2-Bis((1H-pyrrol-2-yl)methylene)hydrazine Using a Custom-Built Colorimeter
title_sort colorimetric cu(2+) detection of (1e,2e)-1,2-bis((1h-pyrrol-2-yl)methylene)hydrazine using a custom-built colorimeter
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9730750/
https://www.ncbi.nlm.nih.gov/pubmed/36506133
http://dx.doi.org/10.1021/acsomega.2c06751
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