Yellow-Green and Blue Fluorescent 1,8-Naphthalimide-Based Chemosensors for Metal Cations
Two new 1,8-naphthalimides (NI), emitting yellow-green or blue fluorescence depending on the type of substituents at the C-4 position, have been synthesized and characterized. Their basic photophysical characteristics have been investigated in organic solvents of different polarities. Their ability...
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MDPI AG
2023-01-01
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Series: | Inorganics |
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Online Access: | https://www.mdpi.com/2304-6740/11/2/47 |
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author | Ivo Grabchev Silvia Angelova Desislava Staneva |
author_facet | Ivo Grabchev Silvia Angelova Desislava Staneva |
author_sort | Ivo Grabchev |
collection | DOAJ |
description | Two new 1,8-naphthalimides (NI), emitting yellow-green or blue fluorescence depending on the type of substituents at the C-4 position, have been synthesized and characterized. Their basic photophysical characteristics have been investigated in organic solvents of different polarities. Their ability to detect metal ions (Ag<sup>+</sup>, Cu<sup>2+</sup>, Zn<sup>2+</sup> Ca<sup>2+</sup>, Mg<sup>2+</sup>, Ni<sup>2+</sup>, and Fe<sup>3+</sup>) has been studied in DMF solution. The amino (NI1) and alkoxy (NI2) functionalized 1,8-naphthalimides exhibit different optical and metal ion sensing properties attributable to the nature of the C-4 substituents. In addition, theoretical calculations based on the affordable but effective density functional theory (DFT) and time-dependent DFT (TDDFT) methods were performed in order to investigate the geometric and electronic structure of the title NI compounds. |
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language | English |
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series | Inorganics |
spelling | doaj.art-955e212166e04df39587512cc7e2a0c62023-11-16T21:13:12ZengMDPI AGInorganics2304-67402023-01-011124710.3390/inorganics11020047Yellow-Green and Blue Fluorescent 1,8-Naphthalimide-Based Chemosensors for Metal CationsIvo Grabchev0Silvia Angelova1Desislava Staneva2Faculty of Medicine, Sofia University “St. Kliment Ohridski”, 1407 Sofia, BulgariaInstitute of Optical Materials and Technologies “Acad. J. Malinowski”, Bulgarian Academy of Sciences, 1113 Sofia, BulgariaDepartment of Textile, Leather and Fuels, University of Chemical Technology and Metallurgy, 1756 Sofia, BulgariaTwo new 1,8-naphthalimides (NI), emitting yellow-green or blue fluorescence depending on the type of substituents at the C-4 position, have been synthesized and characterized. Their basic photophysical characteristics have been investigated in organic solvents of different polarities. Their ability to detect metal ions (Ag<sup>+</sup>, Cu<sup>2+</sup>, Zn<sup>2+</sup> Ca<sup>2+</sup>, Mg<sup>2+</sup>, Ni<sup>2+</sup>, and Fe<sup>3+</sup>) has been studied in DMF solution. The amino (NI1) and alkoxy (NI2) functionalized 1,8-naphthalimides exhibit different optical and metal ion sensing properties attributable to the nature of the C-4 substituents. In addition, theoretical calculations based on the affordable but effective density functional theory (DFT) and time-dependent DFT (TDDFT) methods were performed in order to investigate the geometric and electronic structure of the title NI compounds.https://www.mdpi.com/2304-6740/11/2/471,8-naphthalimidefluorescent sensorPETDFTmetal ion sensing |
spellingShingle | Ivo Grabchev Silvia Angelova Desislava Staneva Yellow-Green and Blue Fluorescent 1,8-Naphthalimide-Based Chemosensors for Metal Cations Inorganics 1,8-naphthalimide fluorescent sensor PET DFT metal ion sensing |
title | Yellow-Green and Blue Fluorescent 1,8-Naphthalimide-Based Chemosensors for Metal Cations |
title_full | Yellow-Green and Blue Fluorescent 1,8-Naphthalimide-Based Chemosensors for Metal Cations |
title_fullStr | Yellow-Green and Blue Fluorescent 1,8-Naphthalimide-Based Chemosensors for Metal Cations |
title_full_unstemmed | Yellow-Green and Blue Fluorescent 1,8-Naphthalimide-Based Chemosensors for Metal Cations |
title_short | Yellow-Green and Blue Fluorescent 1,8-Naphthalimide-Based Chemosensors for Metal Cations |
title_sort | yellow green and blue fluorescent 1 8 naphthalimide based chemosensors for metal cations |
topic | 1,8-naphthalimide fluorescent sensor PET DFT metal ion sensing |
url | https://www.mdpi.com/2304-6740/11/2/47 |
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