Permanent Encapsulation of Mobile Molecules in Ionic Solids: Unraveling the Local Microstructure Using Molecular Probes | Sciact - CRIS-system of Boreskov Institute of Catalysis

Permanent Encapsulation of Mobile Molecules in Ionic Solids: Unraveling the Local Microstructure Using Molecular Probes Full article

Journal

The Journal of Physical Chemistry C
ISSN: 1932-7447 , E-ISSN: 1932-7455

Output data

Year: 2025, Volume: 129, Number: 6, Pages: 3096–3106 Pages count : 11 DOI: 10.1021/acs.jpcc.4c08031

Tags

ELECTRON-PARAMAGNETIC-RESONANCE; GEMINATE RADICAL PAIRS; SPIN-LABELED LIPIDS; ALKYL CHAIN-LENGTH; STRUCTURAL ANOMALIES; LIBRATIONAL MOTION; LIQUIDS; EPR; GLASSES; DYNAMICS

Authors

Bakulina Olga D. ^1,2 , Ivanov Mikhail Yu. ¹ , Prikhod’ko Sergey A. ³ , Smirnova Kristina A. ¹ , Sagdeev Renad Z. ¹ , Adonin Nicolay Yu. ³ , Fedin Matvey V. ^1,2

Affiliations

1	International Tomography Center SB RAS, 630090 Novosibirsk, Russia
2	Novosibirsk State University, 630090 Novosibirsk, Russia
3	Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia

Funding (1)

Russian Science Foundation

24-13-00119 (124071600032-2)

Encapsulation of guest molecules into the voids of microporous media is a potent physicochemical strategy to obtain new functional materials. However, achieving durable confinement and mobility/flexibility of the guests simultaneously is often a challenging task. We report a straightforward approach to obtain such materials based on ionic liquids/solids and to study them using molecular probes. In these ionic solids, guest molecules are found encapsulated in closed micropores, allowing both free rotational motion and flexibility. This was approved by using stable nitroxide radicals as guest molecules and electron-paramagnetic resonance (EPR) spectroscopy and further exemplified by showcasing the photoisomerization reaction of azobenzene encapsulated in the materials. Since such ionic solids with entrapped mobile guests are crystalline, transparent for light, and easy to prepare, they represent promising platforms for the design of functional coatings, materials, and other media.

Bakulina O.D. , Ivanov M.Y. , Prikhod’ko S.A. , Smirnova K.A. , Sagdeev R.Z. , Adonin N.Y. , Fedin M.V.
Permanent Encapsulation of Mobile Molecules in Ionic Solids: Unraveling the Local Microstructure Using Molecular Probes
The Journal of Physical Chemistry C. 2025. V.129. N6. P.3096–3106. DOI: 10.1021/acs.jpcc.4c08031 WOS Scopus OpenAlex

Submitted:	Nov 28, 2024
Accepted:	Jan 31, 2025
Published online:	Feb 4, 2025
Published print:	Feb 13, 2025

Web of science:	WOS:001413281800001
Scopus:	2-s2.0-85217047371
OpenAlex:	W4407126821

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