Radical Ionic Liquid: An Efficient Self-Probe to Study Heterogeneous Structure in Glassy State Using EPR Spectroscopy | Sciact - CRIS-система Института катализа

Radical Ionic Liquid: An Efficient Self-Probe to Study Heterogeneous Structure in Glassy State Using EPR Spectroscopy Научная публикация

Журнал

Journal of Molecular Liquids
ISSN: 0167-7322 , E-ISSN: 1873-3166

Вых. Данные

Год: 2023, Том: 381, Номер статьи : 121830, Страниц : 7 DOI: 10.1016/j.molliq.2023.121830

Ключевые слова

EPR; Ionic liquids; Nanostructuring; Spin probes; Glasses

Авторы

Ivanov Mikhail Yu. ^1,2 , Bakulina Olga D. ^1,2 , Polienko Yuliya F. ³ , Kirilyuk Igor A. ³ , Prikhod’ko Sergey A. ⁴ , Adonin Nicolay Yu. ⁴ , Fedin Matvey V. ^1,2

Организации

1	International Tomography Center SB RAS, Institutskaya Street 3a, 630090 Novosibirsk, Russia
2	Novosibirsk State University, Pirogova Street 2, 630090 Novosibirsk, Russia
3	N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, Lavrentiev Avenue 9, 630090 Novosibirsk, Russia
4	Institute of Catalysis SB RAS, Lavrentiev Avenue 5, 630090 Novosibirsk, Russia

Информация о финансировании (1)

Российский научный фонд

19-13-00071

Ionic liquids (ILs) exhibit a number of unique properties, including formation of various heterogeneities in their liquid and glassy states. Electron Paramagnetic Resonance (EPR) spectroscopy has proven informative in studies of such heterogeneous nanostructures; however it employs additional small paramagnetic molecules – spin probes – dissolved in ILs as reporters. In this work we synthesized two radical-ILs, which include integrated paramagnetic fragments in their structures, and employed them in continuous wave (CW) and pulse EPR studies of structural peculiarities in IL glasses. In this approach no external-to-IL spin probe is required. We have shown that the trends observed with radical-ILs are similar to those obtained previously using external-to-IL spin probes. In particular, unusual structural anomalies near glass transition temperatures, which were previously found using external-to-IL spin probes, have been now observed using radical-ILs, thus confirming their genuine origin. In general, radical-ILs can be considered as efficient tools to study heterogeneous structure of ILs using EPR.

Ivanov M.Y. , Bakulina O.D. , Polienko Y.F. , Kirilyuk I.A. , Prikhod’ko S.A. , Adonin N.Y. , Fedin M.V.
Radical Ionic Liquid: An Efficient Self-Probe to Study Heterogeneous Structure in Glassy State Using EPR Spectroscopy
Journal of Molecular Liquids. 2023. V.381. 121830 :1-7. DOI: 10.1016/j.molliq.2023.121830 WOS Scopus РИНЦ CAPlus OpenAlex

Поступила в редакцию:	20 февр. 2023 г.
Принята к публикации:	7 апр. 2023 г.
Опубликована online:	9 апр. 2023 г.
Опубликована в печати:	1 июл. 2023 г.

Web of science:	WOS:000988141800001
Scopus:	2-s2.0-85152452356
РИНЦ:	54068317
Chemical Abstracts:	2023:794057
OpenAlex:	W4362720268

БД	Цитирований
Scopus	6
Web of science	6
РИНЦ	1
OpenAlex	5