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Selective colorimetric sensor for cyanide anion based on 1-hydroxyanthraquinoneстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 17 августа 2021 г.
- Авторы: Martyanov T.P., Kudrevatykh A.A., Ushakov E.N., Korchagin D.V., Sulimenkov I.V., Vasil'ev S.G., Gromov S.P., Klimenko L.S.
- Журнал: Tetrahedron
- Том: 93
- Год издания: 2021
- Издательство: Pergamon Press Ltd.
- Местоположение издательства: United Kingdom
- Номер статьи: 132312
- DOI: 10.1016/j.tet.2021.132312
- Аннотация: The article addresses the synthesis, structure and properties of 2-benzoylamino-1-hydroxyanthraquinone (1a), which can function as a selective colorimetric sensor for the cyanide anion in aqueous media. Compound 1a was prepared in two simple steps in good yield and its structure was confirmed by X-ray diffraction analysis. UVeVis and NMR spectroscopy, mass spectrometry and quantum chemistry studies revealed that in MeCNeH2O mixtures (95:5, v/v), cyanide ionizes the hydroxyl group of the anthraquinone, which results in a strong bathochromic effect. The associationconstant of cyanide anion with 1a was measured to be 10 4.88 M-1; the detection limit is about 0.22 mM.The presence of a benzoylamino group at position 2 of the anthraquinone core has a stabilizing effect on the anionic form of 1a due to the hydrogen bonding between the amide hydrogen atom and the oxygen atom of the ionized hydroxyl group.
- Добавил в систему: Громов Сергей Пантелеймонович