Structural Origins of Viscosity in Imidazolium and Pyrrolidinium Ionic Liquids Coupled with the NTf 2 – Anion

Raphael Ogbodo; Waruni V. Karunaratne; Gobin Raj Acharya; Matthew S. Emerson; Mehreen Mughal; Ho Martin Yuen; Nicole Zmich; Shameir Nembhard; Furong Wang; Hideaki Shirota; Sharon I. Lall-Ramnarine; Edward W. Castner; James F. Wishart; Andrew J. Nieuwkoop; Claudio J. Margulis

doi:10.1021/acs.jpcb.3c02604

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Structural Origins of Viscosity in Imidazolium and Pyrrolidinium Ionic Liquids Coupled with the NTf 2 – Anion

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Structural Origins of Viscosity in Imidazolium and Pyrrolidinium Ionic Liquids Coupled with the NTf 2 – Anion

Raphael Ogbodo, Waruni V. Karunaratne, Gobin Raj Acharya, Matthew S. Emerson, Mehreen Mughal, Ho Martin Yuen, Nicole Zmich, Shameir Nembhard, Furong Wang, Hideaki Shirota, …

The journal of physical chemistry. B, Vol.127(28), pp.6342-6353

07/11/2023

DOI: 10.1021/acs.jpcb.3c02604

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Abstract

Ionic liquid viscosity is one of the most important properties to consider for practical applications. Yet, the connection between local structure and viscosity remains an open question. This article explores the structural origin of differences in the viscosity and viscoelastic relaxation across several ionic liquids, including cations with alkyl, ether, and thioether tails, of the imidazolium and pyrrolidinium families coupled with the NTf2– anion. In all cases, for the systems studied here, we find that pyrrolidinium-based ions are “harder” than their imidazolium-based counterparts. We make a connection between the chemical concept of hardness vs softness and specific structural and structural dynamic quantities that can be derived from scattering experiments and simulations.

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Title: Subtitle: Structural Origins of Viscosity in Imidazolium and Pyrrolidinium Ionic Liquids Coupled with the NTf 2 – Anion
Creators: Raphael Ogbodo - University of Iowa
Waruni V. Karunaratne - University of Iowa
Gobin Raj Acharya - Rutgers, The State University of New Jersey
Matthew S. Emerson - University of Iowa
Mehreen Mughal - Queensborough Community College, CUNY
Ho Martin Yuen - Queensborough Community College, CUNY
Nicole Zmich - Queensborough Community College, CUNY
Shameir Nembhard - Queensborough Community College, CUNY
Furong Wang - Brookhaven National Laboratory
Hideaki Shirota - Chiba University
Sharon I. Lall-Ramnarine - Queensborough Community College, CUNY
Edward W. Castner - Rutgers, The State University of New Jersey
James F. Wishart - Brookhaven National Laboratory
Andrew J. Nieuwkoop - Rutgers, The State University of New Jersey
Claudio J. Margulis - University of Iowa
Resource Type: Journal article
Publication Details: The journal of physical chemistry. B, Vol.127(28), pp.6342-6353
DOI: 10.1021/acs.jpcb.3c02604
ISSN: 1520-6106
eISSN: 1520-5207
Publisher: American Chemical Society
Grant note: DOI: 10.13039/100000165, name: Division of Chemistry, award: CHE-1954358, CHE-1954373; DOI: 10.13039/100006151, name: Basic Energy Sciences, award: DE-SC0012704; DOI: 10.13039/100004870, name: Research Foundation of The City University of New York, award: 64249-00-52A
Language: English
Date published: 07/11/2023
Academic Unit: Chemistry
Record Identifier: 9984444763102771

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