Spectroscopic and Colorimetric Studies for Anions with a New Urea-Based Molecular Cleft
A new simple urea-based dipodal molecular cleft (<b>L</b>) has been synthesized and studied for its binding affinity for a variety of anions by <sup>1</sup>H-NMR, UV-Vis and colorimetric techniques in DMSO-<i>d<sub>6</sub></i> and DMSO, respectively. T...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Chemosensors |
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| Online Access: | https://www.mdpi.com/2227-9040/9/10/287 |
| _version_ | 1797514911163613184 |
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| author | Sanchita Kundu Tochukwu Kevin Egboluche Zehra Yousuf Md. Alamgir Hossain |
| author_facet | Sanchita Kundu Tochukwu Kevin Egboluche Zehra Yousuf Md. Alamgir Hossain |
| author_sort | Sanchita Kundu |
| collection | DOAJ |
| description | A new simple urea-based dipodal molecular cleft (<b>L</b>) has been synthesized and studied for its binding affinity for a variety of anions by <sup>1</sup>H-NMR, UV-Vis and colorimetric techniques in DMSO-<i>d<sub>6</sub></i> and DMSO, respectively. The results from titration studies suggest that the receptor forms a 1:2 complex with each of the anions used via hydrogen bonding interactions and exhibits strong selectivity for fluoride among halides, showing the binding affinity in the order of fluoride > chloride > bromide > iodide; meanwhile, it displays moderate selectivity for acetate among oxoanions, showing the binding affinity in the order of acetate > dihydrogen phosphate > bicarbonate > hydrogen sulfate > nitrate. Colorimetric studies of <b>L</b> for anions in DMSO reveal that the receptor is capable of detecting fluoride, acetate, bicarbonate and dihydrogen phosphate, displaying a visible color change in the presence of the respective anions. |
| first_indexed | 2024-03-10T06:38:14Z |
| format | Article |
| id | doaj.art-1c9f284ba03448fa8a436c522f02ecae |
| institution | Directory Open Access Journal |
| issn | 2227-9040 |
| language | English |
| last_indexed | 2024-03-10T06:38:14Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Chemosensors |
| spelling | doaj.art-1c9f284ba03448fa8a436c522f02ecae2023-11-22T17:49:39ZengMDPI AGChemosensors2227-90402021-10-0191028710.3390/chemosensors9100287Spectroscopic and Colorimetric Studies for Anions with a New Urea-Based Molecular CleftSanchita Kundu0Tochukwu Kevin Egboluche1Zehra Yousuf2Md. Alamgir Hossain3Department of Chemistry, Physics and Atmospheric Sciences, Jackson State University, Jackson, MS 29217, USADepartment of Chemistry, Physics and Atmospheric Sciences, Jackson State University, Jackson, MS 29217, USADepartment of Chemistry, Physics and Atmospheric Sciences, Jackson State University, Jackson, MS 29217, USADepartment of Chemistry, Physics and Atmospheric Sciences, Jackson State University, Jackson, MS 29217, USAA new simple urea-based dipodal molecular cleft (<b>L</b>) has been synthesized and studied for its binding affinity for a variety of anions by <sup>1</sup>H-NMR, UV-Vis and colorimetric techniques in DMSO-<i>d<sub>6</sub></i> and DMSO, respectively. The results from titration studies suggest that the receptor forms a 1:2 complex with each of the anions used via hydrogen bonding interactions and exhibits strong selectivity for fluoride among halides, showing the binding affinity in the order of fluoride > chloride > bromide > iodide; meanwhile, it displays moderate selectivity for acetate among oxoanions, showing the binding affinity in the order of acetate > dihydrogen phosphate > bicarbonate > hydrogen sulfate > nitrate. Colorimetric studies of <b>L</b> for anions in DMSO reveal that the receptor is capable of detecting fluoride, acetate, bicarbonate and dihydrogen phosphate, displaying a visible color change in the presence of the respective anions.https://www.mdpi.com/2227-9040/9/10/287chemosensoranion recognitionneutral receptorureamolecular cleft |
| spellingShingle | Sanchita Kundu Tochukwu Kevin Egboluche Zehra Yousuf Md. Alamgir Hossain Spectroscopic and Colorimetric Studies for Anions with a New Urea-Based Molecular Cleft Chemosensors chemosensor anion recognition neutral receptor urea molecular cleft |
| title | Spectroscopic and Colorimetric Studies for Anions with a New Urea-Based Molecular Cleft |
| title_full | Spectroscopic and Colorimetric Studies for Anions with a New Urea-Based Molecular Cleft |
| title_fullStr | Spectroscopic and Colorimetric Studies for Anions with a New Urea-Based Molecular Cleft |
| title_full_unstemmed | Spectroscopic and Colorimetric Studies for Anions with a New Urea-Based Molecular Cleft |
| title_short | Spectroscopic and Colorimetric Studies for Anions with a New Urea-Based Molecular Cleft |
| title_sort | spectroscopic and colorimetric studies for anions with a new urea based molecular cleft |
| topic | chemosensor anion recognition neutral receptor urea molecular cleft |
| url | https://www.mdpi.com/2227-9040/9/10/287 |
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