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Structural Anomalies in Ionic Liquids near the Glass Transition Revealed by Pulse EPR. / Ivanov, Mikhail Yu; Prikhod'Ko, Sergey A.; Adonin, Nicolay Yu et al.

In: Journal of Physical Chemistry Letters, Vol. 9, No. 16, 16.08.2018, p. 4607-4612.

Research output: Contribution to journal › Article › peer-review

Harvard

Ivanov, MY, Prikhod'Ko, SA, Adonin, NY, Kirilyuk, IA, Adichtchev, SV, Surovtsev, NV, Dzuba, SA & Fedin, MV 2018, 'Structural Anomalies in Ionic Liquids near the Glass Transition Revealed by Pulse EPR', Journal of Physical Chemistry Letters, vol. 9, no. 16, pp. 4607-4612. https://doi.org/10.1021/acs.jpclett.8b02097

APA

Ivanov, M. Y., Prikhod'Ko, S. A., Adonin, N. Y., Kirilyuk, I. A., Adichtchev, S. V., Surovtsev, N. V., Dzuba, S. A., & Fedin, M. V. (2018). Structural Anomalies in Ionic Liquids near the Glass Transition Revealed by Pulse EPR. Journal of Physical Chemistry Letters, 9(16), 4607-4612. https://doi.org/10.1021/acs.jpclett.8b02097

Vancouver

Ivanov MY, Prikhod'Ko SA, Adonin NY, Kirilyuk IA, Adichtchev SV, Surovtsev NV et al. Structural Anomalies in Ionic Liquids near the Glass Transition Revealed by Pulse EPR. Journal of Physical Chemistry Letters. 2018 Aug 16;9(16):4607-4612. doi: 10.1021/acs.jpclett.8b02097

Author

Ivanov, Mikhail Yu ; Prikhod'Ko, Sergey A. ; Adonin, Nicolay Yu et al. / Structural Anomalies in Ionic Liquids near the Glass Transition Revealed by Pulse EPR. In: Journal of Physical Chemistry Letters. 2018 ; Vol. 9, No. 16. pp. 4607-4612.

BibTeX

@article{6d565921e4724d75b7f0bf862a7d1e69,
title = "Structural Anomalies in Ionic Liquids near the Glass Transition Revealed by Pulse EPR",
abstract = "Unusual physical and chemical properties of ionic liquids (ILs) open up prospects for various applications. We report the first observation of density/rigidity heterogeneities in a series of ILs near the glass transition temperature (Tg) by means of pulse electron paramagnetic resonance (EPR). Unprecedented suppression of molecular mobility is evidenced near the glass transition, which is assigned to unusual structural rearrangements of ILs on the nanometer scale. Indeed, pulse and continuous wave EPR clearly indicate the occurrence of heterogeneities near Tg, which exist in a rather broad temperature range of ∼50 K. The two types of local environments are evidenced, being drastically different by their stiffness. The more rigid one suppresses molecular mobility, whereas the softer one instead promotes diffusive molecular rotation. Such properties of ILs near Tg are of general importance; moreover, the observed density/rigidity heterogeneities controlled by temperature might be considered as a new type of tunable reaction nanoenvironment.",
keywords = "TIME-RESOLVED EPR, SPATIAL HETEROGENEITY, CHARGE-TRANSPORT, NMR-SPECTROSCOPY, SPIN DYNAMICS, TEMPERATURE, WATER, CATALYSIS, ECHO, TETRAFLUOROBORATE",
author = "Ivanov, {Mikhail Yu} and Prikhod'Ko, {Sergey A.} and Adonin, {Nicolay Yu} and Kirilyuk, {Igor A.} and Adichtchev, {Sergey V.} and Surovtsev, {Nikolay V.} and Dzuba, {Sergei A.} and Fedin, {Matvey V.}",
note = "Publisher Copyright: {\textcopyright} 2018 American Chemical Society.",
year = "2018",
month = aug,
day = "16",
doi = "10.1021/acs.jpclett.8b02097",
language = "English",
volume = "9",
pages = "4607--4612",
journal = "Journal of Physical Chemistry Letters",
issn = "1948-7185",
publisher = "American Chemical Society",
number = "16",

}

RIS

TY - JOUR

T1 - Structural Anomalies in Ionic Liquids near the Glass Transition Revealed by Pulse EPR

AU - Ivanov, Mikhail Yu

AU - Prikhod'Ko, Sergey A.

AU - Adonin, Nicolay Yu

AU - Kirilyuk, Igor A.

AU - Adichtchev, Sergey V.

AU - Surovtsev, Nikolay V.

AU - Dzuba, Sergei A.

AU - Fedin, Matvey V.

N1 - Publisher Copyright: © 2018 American Chemical Society.

PY - 2018/8/16

Y1 - 2018/8/16

N2 - Unusual physical and chemical properties of ionic liquids (ILs) open up prospects for various applications. We report the first observation of density/rigidity heterogeneities in a series of ILs near the glass transition temperature (Tg) by means of pulse electron paramagnetic resonance (EPR). Unprecedented suppression of molecular mobility is evidenced near the glass transition, which is assigned to unusual structural rearrangements of ILs on the nanometer scale. Indeed, pulse and continuous wave EPR clearly indicate the occurrence of heterogeneities near Tg, which exist in a rather broad temperature range of ∼50 K. The two types of local environments are evidenced, being drastically different by their stiffness. The more rigid one suppresses molecular mobility, whereas the softer one instead promotes diffusive molecular rotation. Such properties of ILs near Tg are of general importance; moreover, the observed density/rigidity heterogeneities controlled by temperature might be considered as a new type of tunable reaction nanoenvironment.

AB - Unusual physical and chemical properties of ionic liquids (ILs) open up prospects for various applications. We report the first observation of density/rigidity heterogeneities in a series of ILs near the glass transition temperature (Tg) by means of pulse electron paramagnetic resonance (EPR). Unprecedented suppression of molecular mobility is evidenced near the glass transition, which is assigned to unusual structural rearrangements of ILs on the nanometer scale. Indeed, pulse and continuous wave EPR clearly indicate the occurrence of heterogeneities near Tg, which exist in a rather broad temperature range of ∼50 K. The two types of local environments are evidenced, being drastically different by their stiffness. The more rigid one suppresses molecular mobility, whereas the softer one instead promotes diffusive molecular rotation. Such properties of ILs near Tg are of general importance; moreover, the observed density/rigidity heterogeneities controlled by temperature might be considered as a new type of tunable reaction nanoenvironment.

KW - TIME-RESOLVED EPR

KW - SPATIAL HETEROGENEITY

KW - CHARGE-TRANSPORT

KW - NMR-SPECTROSCOPY

KW - SPIN DYNAMICS

KW - TEMPERATURE

KW - WATER

KW - CATALYSIS

KW - ECHO

KW - TETRAFLUOROBORATE

UR - http://www.scopus.com/inward/record.url?scp=85051137186&partnerID=8YFLogxK

U2 - 10.1021/acs.jpclett.8b02097

DO - 10.1021/acs.jpclett.8b02097

M3 - Article

C2 - 30052047

AN - SCOPUS:85051137186

VL - 9

SP - 4607

EP - 4612

JO - Journal of Physical Chemistry Letters

JF - Journal of Physical Chemistry Letters

SN - 1948-7185

IS - 16

ER -

ID: 16074378