Nanoconfinement effects on structural anomalies in imidazolium ionic liquids

MY Ivanov, AS Poryvaev, DM Polyukhov, SA Prikhod'ko… - Nanoscale, 2020 - pubs.rsc.org
Imidazolium Ionic Liquids (ILs) have been found to exhibit unusual nanostructuring behavior
below their glass transition temperatures (Tg), which is ascribed to rearrangements in …

Perspective of Overhauser dynamic nuclear polarization for the study of soft materials

JR Biller, R Barnes, S Han - Current Opinion in Colloid & Interface Science, 2018 - Elsevier
Solution state Overhauser dynamic nuclear polarization (ODNP) has been studied for 60
years, but only in recent years has found applications of broad interest to biophysical …

Measurement of T1e, T1N, T1HE, T2e, and T2HE by Pulse EPR at X-Band for Nitroxides at Concentrations Relevant to Solution DNP

JR Biller, JE McPeak, SS Eaton, GR Eaton - Applied Magnetic Resonance, 2018 - Springer
Relaxation times were measured at X-band (9.5 GHz) at concentrations up to 20.8 mM for
two nitroxides that are widely used in Overhauser dynamic nuclear polarization (ODNP) …

[图书][B] Relaxation mechanisms

SS Eaton, GR Eaton - 2018 - books.google.com
Relaxation refers to the return to equilibrium by an unpaired electron spin system that is not
in thermal equilibrium. Readers who come to the field of EPR with a background in optical …

Validation of structural grounds for anomalous molecular mobility in ionic liquid glasses

MY Ivanov, SA Prikhod'ko, OD Bakulina, AS Kiryutin… - Molecules, 2021 - mdpi.com
Ionic liquid (IL) glasses have recently drawn much interest as unusual media with unique
physicochemical properties. In particular, anomalous suppression of molecular mobility in …

Relationship between translational and rotational dynamics of alkyltriethylammonium-based ionic liquids

D Kruk, E Masiewicz, S Lotarska, R Markiewicz… - International Journal of …, 2022 - mdpi.com
1H spin-lattice relaxation experiments have been performed for a series of ionic liquids
including bis (trifluoromethanesulfonyl) imide anion and cations of a varying alkyl chain …

Probing Microenvironment in Ionic Liquids by Time-Resolved EPR of Photoexcited Triplets

MY Ivanov, SL Veber, SA Prikhod'Ko… - The Journal of …, 2015 - ACS Publications
Unusual physicochemical properties of ionic liquids (ILs) open vistas for a variety of new
applications. Herewith, we investigate the influence of microviscosity and nanostructuring of …

Multifrequency pulsed EPR and the characterization of molecular dynamics

SS Eaton, GR Eaton - Methods in enzymology, 2015 - Elsevier
In fluid solution, motion-dependent processes dominate electron spin-lattice relaxation for
nitroxides and semiquinones at frequencies between 250 MHz and 34 GHz. For triarylmethyl …

Rate constants for saturation-recovery EPR and ELDOR of 14N-Spin labels

D Marsh - Journal of Magnetic Resonance, 2023 - Elsevier
Abstract Saturation-recovery (SR)-EPR can determine electron spin–lattice relaxation rates
in liquids over a wide range of effective viscosity, making it especially useful for biophysical …

High-Pressure ESR Spectroscopy: On the Rotational Motion of Spin Probes in Pressurized Ionic Liquids

BY Mladenova Kattnig, DR Kattnig… - The Journal of Physical …, 2022 - ACS Publications
We report high-pressure (up to 50 MPa) ESR-spectroscopic investigations on the rotational
correlation times of the nitroxide radicals 2, 2, 6, 6-tetramethylpiperidine 1-oxyl (TEMPO), 4 …