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Local dynamics in LiCl-CsCl-D2O water-in-salt solutions according to NMR relaxation. / Baranauskaite, Valeriia; Pestova, Olga; Vovk, Mikhail; Matveev, Vladimir; Lähderanta, Erkki.

In: Physical Chemistry Chemical Physics, Vol. 21, No. 41, 07.11.2019, p. 22895-22901.

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Harvard

Baranauskaite, V, Pestova, O, Vovk, M, Matveev, V & Lähderanta, E 2019, 'Local dynamics in LiCl-CsCl-D2O water-in-salt solutions according to NMR relaxation', Physical Chemistry Chemical Physics, vol. 21, no. 41, pp. 22895-22901. https://doi.org/10.1039/c9cp03878g

APA

Vancouver

Author

Baranauskaite, Valeriia ; Pestova, Olga ; Vovk, Mikhail ; Matveev, Vladimir ; Lähderanta, Erkki. / Local dynamics in LiCl-CsCl-D2O water-in-salt solutions according to NMR relaxation. In: Physical Chemistry Chemical Physics. 2019 ; Vol. 21, No. 41. pp. 22895-22901.

BibTeX

@article{933dc4ddf4af460b82a8ea8e26e002b2,
title = "Local dynamics in LiCl-CsCl-D2O water-in-salt solutions according to NMR relaxation",
abstract = "The main purpose of this study was to investigate the local structure and dynamics in 'water-in-salt' solutions, namely the ternary concentrated LiCl-CsCl-D2O electrolytes. Water based electrolyte solutions are components of natural waters, they are very widespread and possess many practical abilities. NMR was applied as the main technique to study the local structure of the solutions as well as ion and solvent dynamics. The characteristic reorientation times (τc) were calculated from spin-lattice relaxation times for2H,7Li, and133Cs nuclei. The diffusion coefficients (D) for1H,7Li, and133Cs nuclei were also obtained. We have confirmed that most of the molecules and ions are combined into dynamic clusters, 'cybotactic groups', with lifetimes long enough for them to diffuse as a whole unit. Thus, the results provide direct experimental confirmation of the existence of 'cybotactic groups' predicted earlier for concentrated electrolyte solutions. The precise self-diffusion coefficients show the state of ions in the system and can be used as a reference for modelling of such systems.",
keywords = "NUCLEAR-MAGNETIC-RESONANCE, SPIN-LATTICE-RELAXATION, ELECTROLYTE-SOLUTIONS, SUPERCOOLED LIQUIDS, AQUEOUS-SOLUTIONS, MOLECULAR-MOTION, REORIENTATION, SYSTEM, MODEL, D2O",
author = "Valeriia Baranauskaite and Olga Pestova and Mikhail Vovk and Vladimir Matveev and Erkki L{\"a}hderanta",
year = "2019",
month = nov,
day = "7",
doi = "10.1039/c9cp03878g",
language = "English",
volume = "21",
pages = "22895--22901",
journal = "Transactions of the Faraday Society",
issn = "1463-9076",
publisher = "Royal Society of Chemistry",
number = "41",

}

RIS

TY - JOUR

T1 - Local dynamics in LiCl-CsCl-D2O water-in-salt solutions according to NMR relaxation

AU - Baranauskaite, Valeriia

AU - Pestova, Olga

AU - Vovk, Mikhail

AU - Matveev, Vladimir

AU - Lähderanta, Erkki

PY - 2019/11/7

Y1 - 2019/11/7

N2 - The main purpose of this study was to investigate the local structure and dynamics in 'water-in-salt' solutions, namely the ternary concentrated LiCl-CsCl-D2O electrolytes. Water based electrolyte solutions are components of natural waters, they are very widespread and possess many practical abilities. NMR was applied as the main technique to study the local structure of the solutions as well as ion and solvent dynamics. The characteristic reorientation times (τc) were calculated from spin-lattice relaxation times for2H,7Li, and133Cs nuclei. The diffusion coefficients (D) for1H,7Li, and133Cs nuclei were also obtained. We have confirmed that most of the molecules and ions are combined into dynamic clusters, 'cybotactic groups', with lifetimes long enough for them to diffuse as a whole unit. Thus, the results provide direct experimental confirmation of the existence of 'cybotactic groups' predicted earlier for concentrated electrolyte solutions. The precise self-diffusion coefficients show the state of ions in the system and can be used as a reference for modelling of such systems.

AB - The main purpose of this study was to investigate the local structure and dynamics in 'water-in-salt' solutions, namely the ternary concentrated LiCl-CsCl-D2O electrolytes. Water based electrolyte solutions are components of natural waters, they are very widespread and possess many practical abilities. NMR was applied as the main technique to study the local structure of the solutions as well as ion and solvent dynamics. The characteristic reorientation times (τc) were calculated from spin-lattice relaxation times for2H,7Li, and133Cs nuclei. The diffusion coefficients (D) for1H,7Li, and133Cs nuclei were also obtained. We have confirmed that most of the molecules and ions are combined into dynamic clusters, 'cybotactic groups', with lifetimes long enough for them to diffuse as a whole unit. Thus, the results provide direct experimental confirmation of the existence of 'cybotactic groups' predicted earlier for concentrated electrolyte solutions. The precise self-diffusion coefficients show the state of ions in the system and can be used as a reference for modelling of such systems.

KW - NUCLEAR-MAGNETIC-RESONANCE

KW - SPIN-LATTICE-RELAXATION

KW - ELECTROLYTE-SOLUTIONS

KW - SUPERCOOLED LIQUIDS

KW - AQUEOUS-SOLUTIONS

KW - MOLECULAR-MOTION

KW - REORIENTATION

KW - SYSTEM

KW - MODEL

KW - D2O

UR - http://www.scopus.com/inward/record.url?scp=85074118908&partnerID=8YFLogxK

U2 - 10.1039/c9cp03878g

DO - 10.1039/c9cp03878g

M3 - Article

C2 - 31595920

AN - SCOPUS:85074118908

VL - 21

SP - 22895

EP - 22901

JO - Transactions of the Faraday Society

JF - Transactions of the Faraday Society

SN - 1463-9076

IS - 41

ER -

ID: 48770454