Conjugates of 8-[2,2’-bipyridinyl]coumarins as potential chemosensors for Al3+, Cu2+, Cd2+, Zn2+ ions: synthesis and photophysical properties
Электронный архив УГЛТУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
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Conjugates of 8-[2,2’-bipyridinyl]coumarins as potential chemosensors for Al3+, Cu2+, Cd2+, Zn2+ ions: synthesis and photophysical properties
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| Автор |
Sharapov, A. D.
Fatykhov, R. F. Khalymbadzha, I. A. Kopchuk, D. S. Nikonov, I. L. Potapova, A. P. Shtaitz, Y. K. Slepukhin, P. A. |
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| Тематика |
2,2’-BIPYRIDINES
CHEMOSENSORS COUMARINS METAL COMPLEXES PHOTOPHYSICAL PROPERTIES |
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| Описание |
In this work, we report the synthesis of novel coumarin-bipyridine conjugates using a sequence of C–C coupling reaction between 5,7-dimethox-ycoumarins and 3-pyridyl-6-aryl-1,2,4-triazines followed by the Boger reaction with norbornandiene to obtain 8-[2,2'-bipyridyl]-5,7-dimethox-ycoumarins. Photophysical properties were investigated for the obtained series of 8-[2,2'-bipyridyl]-5,7-dimethoxycoumarins: absorption and emission wavelength maxima are in the region of 212–296 and 401–410 nm, respectively; Stokes shifts are up to 116 nm, and fluorescence quantum yields are up to 15.0%. It was found that titrating the conjugates with Al3+, Zn2+, and Cd2+ ions results in an increase in the intensity of the emission maxima of the complexes, while the opposite effect was observed in the case of titration with Cu2+ ions. These findings suggest that the studied compounds may be considered as promising chemosensing materials. Finally, a positive solvatochromism of 8-[2,2'-bipyridyl]coumarins and their metal complexes was established. The experimental data are supported by mathematical calculations according to the Lippert-Mataga equation and Kosower diagram. © 2023, the Authors.
Ministry of Education and Science of the Russian Federation, Minobrnauka The research funding from the Ministry of Science and Higher Education of the Russian Federation (Ural Federal University Program of Development within the Priority-2030 Program) is gratefully acknowledged. |
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| Дата |
2024-05-23T08:40:15Z
2024-05-23T08:40:15Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) Published version (info:eu-repo/semantics/publishedVersion) |
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| Идентификатор |
Conjugates of 8-[2,2’-bipyridinyl]coumarins as potential chemosensors for Al3+, Cu2+, Cd2+, Zn2+ ions: synthesis and photophysical properties / A. D. Sharapov, R. F. Fatykhov, I. A. Khalymbadzha [et al.] // Chimica Techno Acta. – 2023. – Vol. 10. – Iss. 4. – № 202310417. DOI: 10.15826/chimtech.2023.10.4.17.
2409-5613 https://journals.urfu.ru/index.php/chimtech/article/view/7220 https://elar.usfeu.ru/handle/123456789/13194 |
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| Язык |
en
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| Права |
All Open Access, Gold
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| Формат |
application/pdf
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| Издатель |
Ural Federal University
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| Источник |
Chimica Techno Acta
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