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Influence of the Electric Charge of Spin Probes on Their Diffusion in Room-Temperature Ionic Liquids Full article

Journal Journal of Physical Chemistry B
ISSN: 1520-6106
Output data Year: 2021, Volume: 125, Number: 32, Pages: 9235-9243 Pages count : 9 DOI: 10.1021/acs.jpcb.1c02493
Authors Mladenova-Kattnig B.Y. 3 , Chumakova N.A. 1,2 , Kattnig D.R. 3 , Grigor'ev I.A. 4 , Grampp G. 5 , Kokorin A. 1,6
Affiliations
1 (Данные Web of science) Russian Acad Sci, NN Semenov Fed Res Ctr Chem Phys, Moscow 119991, Russia
2 (Данные Web of science) Moscow MV Lomonosov State Univ, Chem Dept, Moscow 119991, Russia
3 (Данные Web of science) Univ Exeter, Living Syst Inst, Exeter EX4 4QD, Devon, England
4 (Данные Web of science) Russian Acad Sci, NN Vorozhtsov Novosibirsk Inst Organ Chem, Siberian Branch, Novosibirsk 630090, Russia
5 (Данные Web of science) Graz Univ Technol, Inst Phys & Theoret Chem, A-8010 Graz, Austria
6 (Данные Web of science) Plekhanov Russian Univ Econ, Moscow 115093, Russia

Abstract: The rotational and translational diffusion of negatively charged and uncharged spin probes in five imidazolium-based room-temperature ionic liquids (RTILs), 1-ethyl-3-methylimidazolium tetrafluoroborate, emimBF(4), 1-butyl-3-methylimidazolium tetrafluoroborate, bmimBF(4), 1-octyl-3-methylimidazolium tetrafluoroborate, omimBF(4), 1-octyl-3-methylimidazolium hexafluorophosphate, omimPF(6), and 1-octyl-3-methylimidazolium chloride, omimCl, has been studied by means of electron paramagnetic resonance spectroscopy. Detailed analyses of the spin-Hamiltonian parameters and spin exchange interactions have been carried out. The temperature dependences of the line broadening induced by the electronic dipole-dipole interaction and the electron spin exchange coupling are determined. The translational mobility of spin probes is semiquantitatively characterized and successfully explained in the framework of a hypothesis based on the assumption of polar and unpolar domains within the RTILs.
Cite: Mladenova-Kattnig B.Y. , Chumakova N.A. , Kattnig D.R. , Grigor'ev I.A. , Grampp G. , Kokorin A.
Influence of the Electric Charge of Spin Probes on Their Diffusion in Room-Temperature Ionic Liquids
Journal of Physical Chemistry B. 2021. V.125. N32. P.9235-9243. DOI: 10.1021/acs.jpcb.1c02493 WOS Scopus OpenAlex
Identifiers:
Web of science: WOS:000687835300016
Scopus: 2-s2.0-85113989087
OpenAlex: W3190828145
Citing:
DB Citing
Web of science 3
Scopus 3
OpenAlex 3
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