Validation of Structural Grounds for Anomalous Molecular Mobility in Ionic Liquid Glasses Научная публикация
| Журнал |
Molecules
ISSN: 1420-3049 |
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| Вых. Данные | Год: 2021, Том: 26, Номер: 19, Номер статьи : 5828, Страниц : 10 DOI: 10.3390/molecules26195828 | ||||
| Ключевые слова | ionic liquids; glasses; molecular mobility; spin probe; deuteration effect; nanostructure | ||||
| Авторы |
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| Организации |
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Информация о финансировании (1)
| 1 | Российский научный фонд | 19-13-00071 |
Реферат:
Ionic liquid (IL) glasses have recently drawn much interest as unusual media with unique physicochemical properties. In particular, anomalous suppression of molecular mobility in imidazolium IL glasses vs. increasing temperature was evidenced by pulse Electron Paramagnetic Resonance (EPR) spectroscopy. Although such behavior has been proven to originate from dynamics of alkyl chains of IL cations, the role of electron spin relaxation induced by surrounding protons still remains unclear. In this work we synthesized two deuterated imidazolium-based ILs to reduce electron–nuclear couplings between radical probe and alkyl chains of IL, and investigated molecular mobility in these glasses. The obtained trends were found closely similar for deuterated and protonated analogs, thus excluding the relaxation-induced artifacts and reliably demonstrating structural grounds of the observed anomalies in heterogeneous IL glasses.
Библиографическая ссылка:
Ivanov M.Y.
, Prikhod’ko S.A.
, Bakulina O.D.
, Kiryutin A.S.
, Adonin N.Y.
, Fedin M.V.
Validation of Structural Grounds for Anomalous Molecular Mobility in Ionic Liquid Glasses
Molecules. 2021. V.26. N19. 5828 :1-10. DOI: 10.3390/molecules26195828 WOS Scopus РИНЦ CAPlus PMID OpenAlex
Validation of Structural Grounds for Anomalous Molecular Mobility in Ionic Liquid Glasses
Molecules. 2021. V.26. N19. 5828 :1-10. DOI: 10.3390/molecules26195828 WOS Scopus РИНЦ CAPlus PMID OpenAlex
Даты:
| Поступила в редакцию: | 18 авг. 2021 г. |
| Принята к публикации: | 23 сент. 2021 г. |
| Опубликована online: | 26 сент. 2021 г. |
| Опубликована в печати: | 1 окт. 2021 г. |
Идентификаторы БД:
| Web of science: | WOS:000760296600001 |
| Scopus: | 2-s2.0-85115861541 |
| РИНЦ: | 47079392 |
| Chemical Abstracts: | 2021:2346515 |
| PMID (PubMed): | 34641371 |
| OpenAlex: | W3202750823 |