Thiacalixarenes with Sulfur Functionalities at Lower Rim: Heavy Metal Ion Binding in Solution and 2D-Confined Space Научная публикация
Журнал |
International Journal of Molecular Sciences
ISSN: 1422-0067 , E-ISSN: 1661-6596 |
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Вых. Данные | Год: 2022, Том: 23, Номер: 4, Номер статьи : 2341, Страниц : 21 DOI: 10.3390/ijms23042341 | ||||||||||||
Ключевые слова | thiacalix[4]arenes; Langmuir monolayers; thiacrown-ethers; X-ray photoelectron spectroscopy; Ag+ and Hg2+ complexes | ||||||||||||
Авторы |
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Организации |
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Информация о финансировании (2)
1 | Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) | 075-00216-20-03 (АААА-А20-120060890029-3) 0671-2020-0063 |
2 | Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) |
Реферат:
Sulfur-containing groups preorganized on macrocyclic scaffolds are well suited for liquidphase
complexation of soft metal ions; however, their binding potential was not extensively studied
at the air–water interface, and the effect of thioether topology on metal ion binding mechanisms
under various conditions was not considered. Herein, we report the interface receptor characteristics
of topologically varied thiacalixarene thioethers (linear bis-(methylthio)ethoxy derivative L2,
O2S2-thiacrown-ether L3, and O2S2-bridged thiacalixtube L4). The study was conducted in bulk liquid
phase and Langmuir monolayers. For all compounds, the highest liquid-phase extraction selectivity
was revealed for Ag+ and Hg2+ ions vs. other soft metal ions. In thioether L2 and thiacalixtube L4,
metal ion binding was evidenced by a blue shift of the band at 303 nm (for Ag+ species) and the
appearance of ligand-to-metal charge transfer bands at 330–340 nm (for Hg2+ species). Theoretical
calculations for thioether L2 and its Ag and Hg complexes are consistent with experimental data of
UV/Vis, nuclear magnetic resonance (NMR) spectroscopy, and single-crystal X-ray diffractometry
of Ag–thioether L2 complexes and Hg–thiacalixtube L4 complex for the case of coordination around
the metal center involving two alkyl sulfide groups (Hg2+) or sulfur atoms on the lower rim and
bridging unit (Ag+). In thiacrown L3, Ag and Hg binding by alkyl sulfide groups was suggested
from changes in NMR spectra upon the addition of corresponding salts. In spite of the low ability
of the thioethers to form stable Langmuir monolayers on deionized water, one might argue that the
monolayers significantly expand in the presence of Hg salts in the water subphase. Hg2+ ion uptake
by the Langmuir–Blodgett (LB) films of ligand L3 was proved by X-ray photoelectron spectroscopy
(XPS). Together, these results demonstrate the potential of sulfide groups on the calixarene platform
as receptor unit towards Hg2+ ions, which could be useful in the development of Hg2+-selective water
purification systems or thin-film sensor devices.
Библиографическая ссылка:
Muravev A.
, Yakupov A.
, Gerasimova T.
, Islamov D.
, Lazarenko V.
, Shokurov A.
, Ovsyannikov A.
, Dorovatovskii P.
, Zubavichus Y.
, Naumkin A.
, Selektor S.
, Solovieva S.
, Antipin I.
Thiacalixarenes with Sulfur Functionalities at Lower Rim: Heavy Metal Ion Binding in Solution and 2D-Confined Space
International Journal of Molecular Sciences. 2022. V.23. N4. 2341 :1-21. DOI: 10.3390/ijms23042341 WOS Scopus РИНЦ CAPlusCA PMID OpenAlex СКИФ ID
Thiacalixarenes with Sulfur Functionalities at Lower Rim: Heavy Metal Ion Binding in Solution and 2D-Confined Space
International Journal of Molecular Sciences. 2022. V.23. N4. 2341 :1-21. DOI: 10.3390/ijms23042341 WOS Scopus РИНЦ CAPlusCA PMID OpenAlex СКИФ ID
Даты:
Поступила в редакцию: | 30 дек. 2021 г. |
Принята к публикации: | 18 февр. 2022 г. |
Опубликована в печати: | 20 февр. 2022 г. |
Опубликована online: | 20 февр. 2022 г. |
Идентификаторы БД:
Web of science: | WOS:000762275300001 |
Scopus: | 2-s2.0-85124882626 |
РИНЦ: | 48151487 |
Chemical Abstracts: | 2022:592487 |
Chemical Abstracts (print): | 178:149223 |
PMID (PubMed): | 35216456 |
OpenAlex: | W4214769485 |
СКИФ ID: | 517 |