skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Structural Analysis of Ionic Liquids With Symmetric and Asymmetric Fluorinated Anions

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.5111643· OSTI ID:1557109
 [1];  [1];  [2];  [2];  [2];  [2];  [2];  [3]; ORCiD logo [4];  [1]
  1. Rutgers Univ., Piscataway, NJ (United States)
  2. City Univ. (CUNY), Bayside, NY (United States). Queensborough Community College
  3. Univ. of Iowa, Iowa City, IA (United States)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States)

Ionic liquids with relatively low viscosities and broad windows of electrochemical stability are often constructed by pairing asymmetric cations with bisfluorosulfonylimide (FSI-) or bistrifylimide (NTf$$-\atop{2}$$) anions. In this work, we systematically studied the structures of ILs with these anions and related perfluoro bis-sulfonylimide anions with asymmetry and/or longer chains: (fluorosulfonyl)( trifluoromethylsulfonyl)imide (BSI$$-\atop{0,1}$$), bis(pentafluoroethylsulfonyl)imide (BETI-), and (trifluoromethylsulfonyl)(nonafluorobutylsulfonyl)imide (BSI$$-\atop{1,4}$$) using high energy X-ray scattering and molecular dynamics (MD) simulations methods. 1- alkyl-3-methylimidazolium cations with short (ethyl, Im$$+\atop{2,1}$$) and longer (octyl, Im$$+\atop{1,8}$$) hydrocarbon chains were selected to examine how the sizes of nonpolar hydrocarbon and fluorous chains affect IL structures and properties. In comparison to these, we also computationally explored the structure of ionic liquids with anions having longer fluorinated tails.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704
OSTI ID:
1557109
Alternate ID(s):
OSTI ID: 1558137
Report Number(s):
BNL-211966-2019-JAAM
Journal Information:
Journal of Chemical Physics, Vol. 151, Issue 7; ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

References (96)

Modeling Ionic Liquids Using a Systematic All-Atom Force Field journal February 2004
Task-Specific Ionic Liquids journal March 2010
OPLS All-Atom Model for Amines:  Resolution of the Amine Hydration Problem journal May 1999
Structural characterization of the [CnC1im][C4F9SO3] ionic liquid series: Alkyl versus perfluoroalkyl side chains journal January 2017
Ionic-liquid materials for the electrochemical challenges of the future journal July 2009
How Ionic Are Room-Temperature Ionic Liquids? An Indicator of the Physicochemical Properties journal October 2006
Small angle neutron scattering from 1-alkyl-3-methylimidazolium hexafluorophosphate ionic liquids ([Cnmim][PF6], n=4, 6, and 8) journal August 2010
On the concept of ionicity in ionic liquids journal January 2009
Applications of ionic liquids in the chemical industry journal January 2008
The Structure of Aqueous Solutions of a Hydrophilic Ionic Liquid: The Full Concentration Range of 1-Ethyl-3-methylimidazolium Ethylsulfate and Water
  • Bernardes, Carlos E. S.; Minas da Piedade, Manuel E.; Canongia Lopes, José N.
  • The Journal of Physical Chemistry B, Vol. 115, Issue 9 https://doi.org/10.1021/jp1113202
journal March 2011
Viscosity of (C2–C14) 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ionic liquids in an extended temperature range journal February 2011
Structure and Aggregation in the 1-Alkyl-3-Methylimidazolium Bis(trifluoromethylsulfonyl)imide Ionic Liquid Homologous Series journal January 2014
Physicochemical Properties and Structures of Room-Temperature Ionic Liquids. 3. Variation of Cationic Structures journal February 2006
Liquid structure of N-butyl-N-methylpyrrolidinium bis-(trifluoromethanesulfonyl) amide ionic liquid studied by large angle X-ray scattering and molecular dynamics simulations journal September 2008
Comparing intermediate range order for alkyl- vs. ether-substituted cations in ionic liquids journal January 2012
High-Energy Synchrotron X-Ray Diffraction and Its Application to In Situ Structural Phase-Transition Studies in Complex Sample Environments journal January 2012
How Is Charge Transport Different in Ionic Liquids and Electrolyte Solutions? journal November 2011
Pronounced Structure in Confined Aprotic Room-Temperature Ionic Liquids journal May 2009
How Is Diffusion of Neutral and Charged Tracers Related to the Structure and Dynamics of a Room-Temperature Ionic Liquid? Large Deviations from Stokes–Einstein Behavior Explained journal April 2015
Heterogeneous Slow Dynamics of Imidazolium-Based Ionic Liquids Studied by Neutron Spin Echo journal February 2013
Microscopic Structural and Dynamic Features in Triphilic Room Temperature Ionic Liquids journal May 2019
Liquids intermediate between “molecular” and “ionic” liquids: Liquid Ion Pairs? journal January 2007
Temperature-dependent structure of methyltributylammonium bis(trifluoromethylsulfonyl)amide: X ray scattering and simulations journal February 2011
Structure of ionic liquids of 1-alkyl-3-methylimidazolium cations: A systematic computer simulation study journal January 2004
How Does the Ionic Liquid Organizational Landscape Change when Nonpolar Cationic Alkyl Groups Are Replaced by Polar Isoelectronic Diethers? journal January 2013
Structure of Binary Liquid Mixtures. I journal April 1967
GROMACS: High performance molecular simulations through multi-level parallelism from laptops to supercomputers journal September 2015
Neutron diffraction by germania, silica and radiation-damaged silica glasses journal February 1969
GROMACS 4.5: a high-throughput and highly parallel open source molecular simulation toolkit journal February 2013
Liquid structure and conformation of a low-viscosity ionic liquid, N-methyl-N-propyl-pyrrolidinium bis(fluorosulfonyl) imide studied by high-energy X-ray scattering journal September 2008
Modern Room Temperature Ionic Liquids, a Simple Guide to Understanding Their Structure and How It May Relate to Dynamics journal August 2015
Ionic Liquids:  Ion Mobilities, Glass Temperatures, and Fragilities journal June 2003
What is the Origin of the Prepeak in the X-ray Scattering of Imidazolium-Based Room-Temperature Ionic Liquids? journal December 2010
Liquid Structure of Room-Temperature Ionic Liquid, 1-Ethyl-3-methylimidazolium Bis-(trifluoromethanesulfonyl) Imide journal April 2008
Structure of cyano-anion ionic liquids: X-ray scattering and simulations journal July 2016
Do TFSA Anions Slither? Pressure Exposes the Role of TFSA Conformational Exchange in Self-Diffusion journal November 2015
Structure and Aggregation in the 1,3-Dialkyl-imidazolium Bis(trifluoromethylsulfonyl)imide Ionic Liquid Family: 2. From Single to Double Long Alkyl Side Chains journal June 2014
Thermal Behavior of Ionic Liquids Containing the FSI Anion and the Li + Cation journal November 2010
A unified formulation of the constant temperature molecular dynamics methods journal July 1984
Differences in Ion Interactions for Isoelectronic Ionic Liquid Homologs journal April 2013
Exact Solution of Generalized Percus-Yevick Equation for a Mixture of Hard Spheres journal February 1964
Nanostructural Organization in Ionic Liquids journal February 2006
Structure and Nanostructure in Ionic Liquids journal June 2015
Ion–ion interaction in room temperature ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate studied by large angle X-ray scattering experiment and molecular dynamics simulations journal July 2009
Ab Initio Molecular Dynamics Simulation of a Room Temperature Ionic Liquid journal March 2005
On the Structure and Dynamics of Ionic Liquids journal February 2004
Experimental evidences for molecular origin of low- Q peak in neutron/x-ray scattering of 1-alkyl-3-methylimidazolium bis(trifluoromethanesulfonyl)amide ionic liquids journal December 2011
Structures of Ionic Liquids Having Both Anionic and Cationic Octyl Tails: Lamellar Vacuum Interface vs Sponge-Like Bulk Order journal September 2016
SAXS anti-peaks reveal the length-scales of dual positive–negative and polar–apolar ordering in room-temperature ionic liquids journal January 2012
A molecular dynamics method for simulations in the canonical ensemble journal June 1984
Bicontinuity and Multiple Length Scale Ordering in Triphilic Hydrogen-Bonding Ionic Liquids journal September 2014
X-ray scattering factors computed from numerical Hartree–Fock wave functions journal March 1968
Effects of Aromaticity in Cations and Their Functional Groups on the Low-Frequency Spectra and Physical Properties of Ionic Liquids journal September 2014
A molecular dynamics simulation interpretation of neutron and x-ray diffraction measurements on single phase Y 2 O 3 –Al 2 O 3 glasses journal April 2009
Particle mesh Ewald: An N ⋅log( N ) method for Ewald sums in large systems journal June 1993
Energy applications of ionic liquids journal January 2009
Ionic Liquids: Structure and Photochemical Reactions journal May 2011
Heat Capacities and Low Temperature Thermal Transitions of 1-Hexyl and 1-Octyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide journal May 2011
Mesoscopic structural organization in triphilic room temperature ionic liquids journal January 2013
CL&P: A generic and systematic force field for ionic liquids modeling journal February 2012
Nanoscale Segregation in Room Temperature Ionic Liquids journal May 2007
Molecular Force Field for Ionic Liquids III:  Imidazolium, Pyridinium, and Phosphonium Cations; Chloride, Bromide, and Dicyanamide Anions journal October 2006
Amphiphilicity determines nanostructure in protic ionic liquids journal January 2011
Ionicity in ionic liquids: correlation with ionic structure and physicochemical properties journal January 2010
Morphology and intermolecular dynamics of 1-alkyl-3-methylimidazolium bis{(trifluoromethane)sulfonyl}amide ionic liquids: structural and dynamic evidence of nanoscale segregation journal September 2009
Structure of 1-Alkyl-1-methylpyrrolidinium Bis(trifluoromethylsulfonyl)amide Ionic Liquids with Linear, Branched, and Cyclic Alkyl Groups journal July 2013
Polymorphic transitions in single crystals: A new molecular dynamics method journal December 1981
Protic ionic liquids with fluorous anions: physicochemical properties and self-assembly nanostructure journal January 2012
Ionic liquid ultrathin films at the surface of Cu(100) and Au(111) journal February 2017
PACKMOL: A package for building initial configurations for molecular dynamics simulations journal October 2009
Molecular Dynamics Simulation and Pulsed-Field Gradient NMR Studies of Bis(fluorosulfonyl)imide (FSI) and Bis[(trifluoromethyl)sulfonyl]imide (TFSI)-Based Ionic Liquids journal May 2010
Liquid Structure and the Ion-Ion Interactions of Ethylammonium Nitrate Ionic Liquid Studied by Large Angle X-Ray Scattering and Molecular Dynamics Simulations journal January 2008
Ionic liquids as electrolytes journal August 2006
Connecting Structural and Transport Properties of Ionic Liquids with Cationic Oligoether Chains journal January 2017
A smooth particle mesh Ewald method journal November 1995
TRAVIS - A Free Analyzer and Visualizer for Monte Carlo and Molecular Dynamics Trajectories journal July 2011
Are Room-Temperature Ionic Liquids Dilute Electrolytes? journal December 2014
Designer Ionic Liquids for Reversible Electrochemical Deposition/Dissolution of Magnesium journal January 2016
Non-Haloaluminate Room-Temperature Ionic Liquids in Electrochemistry—A Review journal August 2004
Communication: Nanoscale structure of tetradecyltrihexylphosphonium based ionic liquids journal March 2016
Fluorous protic ionic liquid exhibits a series of lyotropic liquid crystalline mesophases upon water addition journal October 2015
Mesoscopic structural organization in fluorinated room temperature ionic liquids journal August 2018
Molecular Force Field for Ionic Liquids Composed of Triflate or Bistriflylimide Anions journal October 2004
VMD: Visual molecular dynamics journal February 1996
Two-dimensional detector software: From real detector to idealised image or two-theta scan journal January 1996
At the interface: solvation and designing ionic liquids journal January 2010
Modeling Ionic Liquids Using a Systematic All-Atom Force Field journal July 2004
Task-Specific Ionic Liquids journal September 2004
Improving the specificity of organophosphorus hydrolase to acephate by mutagenesis at its binding site: a computational study journal May 2021
What is the Origin of the Prepeak in the X-ray Scattering of Imidazolium-Based Room-Temperature Ionic Liquids? journal July 2011
Amorphization-induced surface electronic states modulation of cobaltous oxide nanosheets for lithium-sulfur batteries journal May 2021
Rational identification and characterisation of peptide ligands for targeting polysialic acid journal May 2020
A molecular dynamics method for simulations in the canonical ensemble journal January 2002
TRAVIS - a free analyzer and visualizer for Monte Carlo and molecular dynamics trajectories journal May 2012
Structure of Binary Liquid Mixtures. I journal February 1968
Are Room Temperature Ionic Liquids Dilute Electrolytes? text January 2014