Standard

Molecular Mobility in a Set of Imidazolium-Based Ionic Liquids [bmim] + A - by the NMR-Relaxation Method. / Bystrov, Sergei S.; Matveev, Vladimir V.; Chernyshev, Yurii S.; Balevičius, Vytautas; Chizhik, Vladimir I.

In: Journal of Physical Chemistry B, Vol. 123, No. 10, 14.03.2019, p. 2362-2372.

Research output: Contribution to journalArticlepeer-review

Harvard

APA

Vancouver

Author

BibTeX

@article{e9396e8fb4fa4e56a2766b67edd7169c,
title = "Molecular Mobility in a Set of Imidazolium-Based Ionic Liquids [bmim] + A - by the NMR-Relaxation Method",
abstract = " The detailed investigation of the local mobility in a set of dried imidazolium-based ionic liquids (1-butyl-3-methylimidazolium) in a wide temperature range and varying anions (BF 4 - , I - , Cl - , Br - , NO 3 - , TfO - ) is presented. The measurements of temperature dependencies of the spin-lattice relaxation times of 1 H and 13 C nuclei are motivated by the need to obtain a fundamental characterization of molecular mobility of the substances under study, namely, to estimate the correlation times, τ c , for the motion of individual molecular groups. In particular, it follows from obtained results that the mobility of the hydrocarbon {"}tail{"} is higher (smaller τ c ) than that of the imidazole ring, and this expected tendency is quantified. The effect of the influence of an anion type on the cation mobility is also analyzed. ",
keywords = "ALKYL CHAIN-LENGTH, C-13 NMR, REORIENTATIONAL DYNAMICS, 1-ETHYL-3-METHYLIMIDAZOLIUM ACETATE, 1-BUTYL-3-METHYLIMIDAZOLIUM BROMIDE, PHYSICOCHEMICAL PROPERTIES, DIFFUSION-COEFFICIENTS, LITHIUM-SALTS, H-1, SPECTROSCOPY",
author = "Bystrov, {Sergei S.} and Matveev, {Vladimir V.} and Chernyshev, {Yurii S.} and Vytautas Balevi{\v c}ius and Chizhik, {Vladimir I.}",
year = "2019",
month = mar,
day = "14",
doi = "10.1021/acs.jpcb.8b11250",
language = "English",
volume = "123",
pages = "2362--2372",
journal = "Journal of Physical Chemistry B",
issn = "1520-6106",
publisher = "American Chemical Society",
number = "10",

}

RIS

TY - JOUR

T1 - Molecular Mobility in a Set of Imidazolium-Based Ionic Liquids [bmim] + A - by the NMR-Relaxation Method

AU - Bystrov, Sergei S.

AU - Matveev, Vladimir V.

AU - Chernyshev, Yurii S.

AU - Balevičius, Vytautas

AU - Chizhik, Vladimir I.

PY - 2019/3/14

Y1 - 2019/3/14

N2 - The detailed investigation of the local mobility in a set of dried imidazolium-based ionic liquids (1-butyl-3-methylimidazolium) in a wide temperature range and varying anions (BF 4 - , I - , Cl - , Br - , NO 3 - , TfO - ) is presented. The measurements of temperature dependencies of the spin-lattice relaxation times of 1 H and 13 C nuclei are motivated by the need to obtain a fundamental characterization of molecular mobility of the substances under study, namely, to estimate the correlation times, τ c , for the motion of individual molecular groups. In particular, it follows from obtained results that the mobility of the hydrocarbon "tail" is higher (smaller τ c ) than that of the imidazole ring, and this expected tendency is quantified. The effect of the influence of an anion type on the cation mobility is also analyzed.

AB - The detailed investigation of the local mobility in a set of dried imidazolium-based ionic liquids (1-butyl-3-methylimidazolium) in a wide temperature range and varying anions (BF 4 - , I - , Cl - , Br - , NO 3 - , TfO - ) is presented. The measurements of temperature dependencies of the spin-lattice relaxation times of 1 H and 13 C nuclei are motivated by the need to obtain a fundamental characterization of molecular mobility of the substances under study, namely, to estimate the correlation times, τ c , for the motion of individual molecular groups. In particular, it follows from obtained results that the mobility of the hydrocarbon "tail" is higher (smaller τ c ) than that of the imidazole ring, and this expected tendency is quantified. The effect of the influence of an anion type on the cation mobility is also analyzed.

KW - ALKYL CHAIN-LENGTH

KW - C-13 NMR

KW - REORIENTATIONAL DYNAMICS

KW - 1-ETHYL-3-METHYLIMIDAZOLIUM ACETATE

KW - 1-BUTYL-3-METHYLIMIDAZOLIUM BROMIDE

KW - PHYSICOCHEMICAL PROPERTIES

KW - DIFFUSION-COEFFICIENTS

KW - LITHIUM-SALTS

KW - H-1

KW - SPECTROSCOPY

UR - http://www.scopus.com/inward/record.url?scp=85062873666&partnerID=8YFLogxK

U2 - 10.1021/acs.jpcb.8b11250

DO - 10.1021/acs.jpcb.8b11250

M3 - Article

C2 - 30779569

AN - SCOPUS:85062873666

VL - 123

SP - 2362

EP - 2372

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

SN - 1520-6106

IS - 10

ER -

ID: 39998758