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Manandhar E, Day BO, Sampson KSM, Schroeder EE, Ninahaza AL, Aragon ST, Kwan CJ, Tinacba FC, Do JJ, Jees R, Bhatta RS, Cragg PJ. A 1,8-Naphthalimide-based Tripodal Fluorescent Chemosensor to Selectively Detect Copper Ions. J Fluoresc 2024:10.1007/s10895-024-03867-7. [PMID: 39066915 DOI: 10.1007/s10895-024-03867-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Accepted: 07/19/2024] [Indexed: 07/30/2024]
Abstract
A 1,8-naphthalimide-based tripodal fluorescent ligand (L3) was synthesized through the copper (I) catalyzed Huisgen azide-alkyne cycloaddition reaction of 2-(2-azidoethyl)-6-morpholino-1 H-benzo[de]isoquinoline-1,3(2 H)-dione with triproparagylamine. Naphthalimide acts as the fluorophore while the triazole and amine nitrogens chelate the metal ion. L3 showed a selective fluorescence turn-off for Cu(II) over other metal ions in aqueous acetonitrile solution. A Job's plot, Benesi-Hildbrand plot and high-resolution mass spectrometry data confirm a 1:1 binding stoichiometry with a binding constant of 7.8 х105 M- 1 while addition of disodium EDTA demonstrates its reversibility. The structure and stability of the complex was supported by theoretical calculations. The limit of detection for Cu(II) was calculated to be 0.3 µM which is considerably lower than WHO recommended Cu(II) limit in drinking water.
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Affiliation(s)
- Erendra Manandhar
- Department of Chemistry and Biochemistry, St. Mary's University, San Antonio, TX, USA.
| | - Blake O Day
- Department of Chemistry, Berea College, Berea, KY, USA
| | | | | | | | - Samantha T Aragon
- Department of Chemistry and Biochemistry, St. Mary's University, San Antonio, TX, USA
| | - Camille J Kwan
- Department of Chemistry and Biochemistry, St. Mary's University, San Antonio, TX, USA
| | - Franchesca C Tinacba
- Department of Chemistry and Biochemistry, St. Mary's University, San Antonio, TX, USA
| | - Joshua J Do
- Department of Chemistry and Biochemistry, St. Mary's University, San Antonio, TX, USA
| | - Rosanna Jees
- Department of Chemistry and Biochemistry, St. Mary's University, San Antonio, TX, USA
| | | | - Peter J Cragg
- School of Applied Sciences, University of Brighton, Brighton, UK
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MENGEŞ N. Heterocyclic molecules with ESIPT emission: synthetic approaches, molecular diversities, and application strategies. Turk J Chem 2023; 47:888-909. [PMID: 38173742 PMCID: PMC10760871 DOI: 10.55730/1300-0527.3585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 10/31/2023] [Accepted: 09/30/2023] [Indexed: 01/05/2024] Open
Abstract
Excited-state intramolecular proton transfer (ESIPT) is one of the most essential emission processes in most circumstances because of its dual emission band in most cases and its high Stokes shifts. These distinguishing properties make ESIPT-based probes more suitable for a variety of applications, including analyte sensors, solid-state sensing mechanisms, optical technologies, and biomarkers for endogenous or exogenous compounds in various settings. As a result, researchers around the world are working on ESIPT emissions and developing different scaffolds for various applications or industry demands. This field of study is rapidly expanding and there is a need for an up-to-date review of synthesis methodologies and applications. This paper provides the highlights of ESIPT-based heterocyclic scaffolds, synthesis strategies, and application scenarios in the literature from 2017 to 2023.
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Affiliation(s)
- Nurettin MENGEŞ
- Science and Technology Research and Application Center (BİTAM), Necmettin Erbakan University, Konya,
Turkiye
- Department of Biomedical Engineering, Faculty of Engineering, Necmettin Erbakan University, Konya,
Turkiye
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Paderni D, Lopez D, Macedi E, Ambrosi G, Ricci A, Palazzetti E, Giorgi L, Formica M, Fusi V. Solvent induced selective response to metal ions of three HNBO-based chemosensors. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2023.121400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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