1
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Bayles AV, Fisher JM, Valentine CS, Nowbahar A, Helgeson ME, Squires TM. Hydrogen Bonding Strength Determines Water Diffusivity in Polymer Ionogels. J Phys Chem B 2021; 125:5408-5419. [PMID: 33979515 DOI: 10.1021/acs.jpcb.1c01460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Polymeric ionogels, cross-linked gels swollen by ionic liquids (ILs), are useful vehicles for the release and storage of molecular solutes in separation, delivery, and other applications. Although rapid solute diffusion is often critical for performance, it remains challenging to predict diffusivities across multidimensional composition spaces. Recently, we showed that water (a neutral solute) diffuses through alkyl-methylimidazolium halide ILs by hopping between hydrogen bonding sites on relatively immobile cations. Here, we expand on this activated hopping mechanism in two significant ways. First, we demonstrate that water diffuses through poly(ethylene glycol)diacrylate ionogels via the same mechanism at a reduced rate. Second, we hypothesize that the activation energy barrier can be determined from relatively simple 1H NMR chemical shift measurements of the proton responsible for H-bonding. This relationship enables water's diffusivity in ionogels of this class to be predicted quantitatively, requiring only (1) the composition-dependent diffusivity and Arrhenius behavior of a single IL and (2) 1H NMR spectra of the ionogels of interest. High-throughput microfluidic Fabry-Perot interferometry measurements verify prediction accuracy across a broad formulation space (four ILs, 0 ≤ xH2O ≤ 0.7, 0 ≤ ϕPEGDA ≤ 0.66). The predictive model may expedite IL-material screening; moreover, it intimates a powerful connection between solute mobility and hydrogen bonding and suggests targets for rational design.
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Affiliation(s)
- Alexandra V Bayles
- Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara 93106-9010, United States.,Department of Materials, ETH Zürich, Zürich 8093, Switzerland
| | - Julia M Fisher
- Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara 93106-9010, United States
| | - Connor S Valentine
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh 15213, United States
| | - Arash Nowbahar
- Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara 93106-9010, United States
| | - Matthew E Helgeson
- Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara 93106-9010, United States
| | - Todd M Squires
- Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara 93106-9010, United States
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2
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Wang YL, Li B, Sarman S, Mocci F, Lu ZY, Yuan J, Laaksonen A, Fayer MD. Microstructural and Dynamical Heterogeneities in Ionic Liquids. Chem Rev 2020; 120:5798-5877. [PMID: 32292036 PMCID: PMC7349628 DOI: 10.1021/acs.chemrev.9b00693] [Citation(s) in RCA: 197] [Impact Index Per Article: 49.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Indexed: 12/11/2022]
Abstract
Ionic liquids (ILs) are a special category of molten salts solely composed of ions with varied molecular symmetry and charge delocalization. The versatility in combining varied cation-anion moieties and in functionalizing ions with different atoms and molecular groups contributes to their peculiar interactions ranging from weak isotropic associations to strong, specific, and anisotropic forces. A delicate interplay among intra- and intermolecular interactions facilitates the formation of heterogeneous microstructures and liquid morphologies, which further contributes to their striking dynamical properties. Microstructural and dynamical heterogeneities of ILs lead to their multifaceted properties described by an inherent designer feature, which makes ILs important candidates for novel solvents, electrolytes, and functional materials in academia and industrial applications. Due to a massive number of combinations of ion pairs with ion species having distinct molecular structures and IL mixtures containing varied molecular solvents, a comprehensive understanding of their hierarchical structural and dynamical quantities is of great significance for a rational selection of ILs with appropriate properties and thereafter advancing their macroscopic functionalities in applications. In this review, we comprehensively trace recent advances in understanding delicate interplay of strong and weak interactions that underpin their complex phase behaviors with a particular emphasis on understanding heterogeneous microstructures and dynamics of ILs in bulk liquids, in mixtures with cosolvents, and in interfacial regions.
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Affiliation(s)
- Yong-Lei Wang
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Bin Li
- School
of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, P. R. China
| | - Sten Sarman
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Francesca Mocci
- Department
of Chemical and Geological Sciences, University
of Cagliari, I-09042 Monserrato, Italy
| | - Zhong-Yuan Lu
- State
Key Laboratory of Supramolecular Structure and Materials, Institute
of Theoretical Chemistry, Jilin University, Changchun 130021, P. R. China
| | - Jiayin Yuan
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Aatto Laaksonen
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
- State
Key Laboratory of Materials-Oriented and Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
- Centre of
Advanced Research in Bionanoconjugates and Biopolymers, Petru Poni Institute of Macromolecular Chemistry Aleea Grigore Ghica-Voda, 41A, 700487 Iasi, Romania
- Department
of Engineering Sciences and Mathematics, Division of Energy Science, Luleå University of Technology, SE-97187 Luleå, Sweden
| | - Michael D. Fayer
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
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3
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Mesoscopic structural organization in fluorinated pyrrolidinium-based room temperature ionic liquids. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111110] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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4
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Sanchora P, Pandey DK, Rana D, Materny A, Singh DK. Impact of Size and Electronegativity of Halide Anions on Hydrogen Bonds and Properties of 1-Ethyl-3-methylimidazolium-Based Ionic Liquids. J Phys Chem A 2019; 123:4948-4963. [DOI: 10.1021/acs.jpca.9b04116] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Paridhi Sanchora
- Department of Physics, Institute of Infrastructure Technology Research & Management, Ahmedabad 380026, India
| | - Deepak K. Pandey
- Department of Physics, Institute of Infrastructure Technology Research & Management, Ahmedabad 380026, India
| | - Debkumar Rana
- Physics and Earth Sciences, Jacobs University Bremen, 28759 Bremen, Germany
| | - Arnulf Materny
- Physics and Earth Sciences, Jacobs University Bremen, 28759 Bremen, Germany
| | - Dheeraj K. Singh
- Department of Physics, Institute of Infrastructure Technology Research & Management, Ahmedabad 380026, India
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5
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Lo Celso F, Appetecchi GB, Simonetti E, Zhao M, Castner EW, Keiderling U, Gontrani L, Triolo A, Russina O. Microscopic Structural and Dynamic Features in Triphilic Room Temperature Ionic Liquids. Front Chem 2019; 7:285. [PMID: 31119123 PMCID: PMC6507529 DOI: 10.3389/fchem.2019.00285] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 04/08/2019] [Indexed: 01/20/2023] Open
Abstract
Here we report a thorough investigation of the microscopic and mesoscopic structural organization in a series of triphilic fluorinated room temperature ionic liquids, namely [1-alkyl,3-methylimidazolium][(trifluoromethanesulfonyl)(nonafluorobutylsulfonyl)imide], with alkyl = ethyl, butyl, octyl ([Cnmim][IM14], n = 2, 4, 8), based on the synergic exploitation of X-ray and Neutron Scattering and Molecular Dynamics simulations. This study reveals the strong complementarity between X-ray/neutron scattering in detecting the complex segregated morphology in these systems at mesoscopic spatial scales. The use of MD simulations delivering a very good agreement with experimental data allows us to gain a robust understanding of the segregated morphology. The structural scenario is completed with determination of dynamic properties accessing the diffusive behavior and a relaxation map is provided for [C2mim][IM14] and [C8mim][IM14], highlighting their natures as fragile glass formers.
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Affiliation(s)
- Fabrizio Lo Celso
- Dipartimento di Fisica e Chimica, Università di Palermo, Palermo, Italy
| | | | | | - Man Zhao
- Department of Chemistry and Chemical Biology, Rutgers University, The State University of New Jersey, Newark, NJ, United States
| | - Edward W Castner
- Department of Chemistry and Chemical Biology, Rutgers University, The State University of New Jersey, Newark, NJ, United States
| | - Uwe Keiderling
- Soft Matter and Functional Materials, Helmholtz-Zentrum für Materialien und Energie GmbH, Berlin, Germany
| | - Lorenzo Gontrani
- Department of Chemistry, University of Rome Sapienza, Rome, Italy
| | - Alessandro Triolo
- Laboratorio Liquidi Ionici, Istituto Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Rome, Italy
| | - Olga Russina
- Department of Chemistry, University of Rome Sapienza, Rome, Italy
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6
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Crystal structures, thermal analysis and electrochemical behaviors of functionalized pyridinium ionic liquids comprising one 1-ethyl acetate group. Chem Res Chin Univ 2016. [DOI: 10.1007/s40242-016-5252-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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7
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Matthews RP, Villar-Garcia IJ, Weber CC, Griffith J, Cameron F, Hallett JP, Hunt PA, Welton T. A structural investigation of ionic liquid mixtures. Phys Chem Chem Phys 2016; 18:8608-24. [DOI: 10.1039/c6cp00156d] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The role of hydrogen bonding, π+–π+ stacking and anion–π+ interactions on the structure of ionic liquid mixtures has been elucidated through a combined theoretical and experimental approach.
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Affiliation(s)
| | | | | | | | - Fiona Cameron
- Department of Chemistry
- Imperial College London
- London
- UK
| | - Jason P. Hallett
- Department of Chemistry
- Imperial College London
- London
- UK
- Department of Chemical Engineering
| | | | - Tom Welton
- Department of Chemistry
- Imperial College London
- London
- UK
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8
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D’Angelo P, Serva A, Aquilanti G, Pascarelli S, Migliorati V. Structural Properties and Aggregation Behavior of 1-Hexyl-3-methylimidazolium Iodide in Aqueous Solutions. J Phys Chem B 2015; 119:14515-26. [DOI: 10.1021/acs.jpcb.5b08739] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Paola D’Angelo
- Dipartimento
di Chimica, Università di Roma “La Sapienza”, P.le
A. Moro 5, 00185 Roma, Italy
| | - Alessandra Serva
- Dipartimento
di Chimica, Università di Roma “La Sapienza”, P.le
A. Moro 5, 00185 Roma, Italy
| | - Giuliana Aquilanti
- Elettra-Sincrotrone Trieste S.C.p.A s.s., 14, km 163.5, I-34149 Basovizza, Trieste, Italy
| | - Sakura Pascarelli
- European Synchrotron Radiation Facility, BP 220, 38043 Grenoble Cedex, France
| | - Valentina Migliorati
- Dipartimento
di Chimica, Università di Roma “La Sapienza”, P.le
A. Moro 5, 00185 Roma, Italy
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9
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Affiliation(s)
- Robert Hayes
- Discipline
of Chemistry, The University of Newcastle, NSW 2308, Callaghan, Australia
| | - Gregory G. Warr
- School
of Chemistry, The University of Sydney, NSW 2006, Sydney, Australia
| | - Rob Atkin
- Discipline
of Chemistry, The University of Newcastle, NSW 2308, Callaghan, Australia
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10
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Matthews RP, Welton T, Hunt PA. Hydrogen bonding and π–π interactions in imidazolium-chloride ionic liquid clusters. Phys Chem Chem Phys 2015; 17:14437-53. [DOI: 10.1039/c5cp00459d] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The importance of 1° and 2° hydrogen-bonding and anion–π+ interactions for ionic liquid structuring.
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Affiliation(s)
| | - Tom Welton
- Department of Chemistry
- Imperial College London
- London
- UK
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11
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Migliorati V, Serva A, Aquilanti G, Pascarelli S, D'Angelo P. Local order and long range correlations in imidazolium halide ionic liquids: a combined molecular dynamics and XAS study. Phys Chem Chem Phys 2015; 17:16443-53. [DOI: 10.1039/c5cp01613d] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
EXAFS spectroscopy and molecular dynamics simulations have been combined to unveil the effect of the cation and anion nature on the local order and long range interactions of imidazolium halide ionic liquids.
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Affiliation(s)
| | - Alessandra Serva
- Dipartimento di Chimica
- Università di Roma “La Sapienza”
- 00185 Roma
- Italy
| | - Giuliana Aquilanti
- Elettra-Sincrotrone Trieste S.C.p.A s.s. 14
- km 163.5
- I-34149 Basovizza
- Italy
| | | | - Paola D'Angelo
- Dipartimento di Chimica
- Università di Roma “La Sapienza”
- 00185 Roma
- Italy
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12
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Matthews RP, Welton T, Hunt PA. Competitive pi interactions and hydrogen bonding within imidazolium ionic liquids. Phys Chem Chem Phys 2014; 16:3238-53. [PMID: 24407103 DOI: 10.1039/c3cp54672a] [Citation(s) in RCA: 132] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this paper we have explored the structural and energetic landscape of potential π(+)-π(+) stacked motifs, hydrogen-bonding arrangements and anion-π(+) interactions for gas-phase ion pair (IP) conformers and IP-dimers of 1,3-dimethylimidazolium chloride, [C1C1im]Cl. We classify cation-cation ring stacking as an electron deficient π(+)-π(+) interaction, and a competitive anion on-top IP motif as an anion-donor π(+)-acceptor interaction. 21 stable IP-dimers have been obtained within an energy range of 0-126 kJ mol(-1). The structures have been found to exhibit a complex interplay of structural features. We have found that low energy IP-dimers are not necessarily formed from the lowest energy IP conformers. The sampled range of IP-dimers exhibits new structural forms that cannot be recovered by examining the ion-pairs alone, moreover the IP-dimers are recovering additional key features of the local liquid structure. Including dispersion is shown to impact both the relative energy ordering and the geometry of the IPs and IP-dimers, however the impact is found to be subtle and dependent on the underlying functional.
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13
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Matthews RP, Ashworth C, Welton T, Hunt PA. The impact of anion electronic structure: similarities and differences in imidazolium based ionic liquids. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2014; 26:284112. [PMID: 24919772 DOI: 10.1088/0953-8984/26/28/284112] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this paper the structural and energetic landscapes of ion-pair dimer conformers of 1,3-dimethylimidazolium based ionic liquids have been explored ([C1C1im][A])2, A = Cl(-), [NO3](-), [MeSO4](-), [OTf](-) and [BF4](-)). A common low-energy conformer has been selected for full electronic structure analysis. We have compared and contrasted each cluster based on the relative hydrogen bonding ability (β-value) of the anion, which varies experimentally as Cl(-) > [NO3](-) ≈ [MeSO4](-) > [OTf](-) ≈ [BF4](-). Correlations between experimental β-values, computed binding energies, charge transfer and various hydrogen bonding data have been made and outliers have been explained in terms of environmental effects present in the liquid phase. This is most evident in the structurally similar [MeSO4](-) and [OTf](-) anions that have very similar hydrogen bonding motifs, but significantly different β-values. Moreover, detailed analysis of the cluster molecular orbitals, for each anion, reveals a subtle interplay between two modes of interaction, an in-plane traditional H-bonding and inter-planar anion-π interaction. Inter-planar anion-π interactions are particularly prominent for the [NO3](-) cluster. We have rationalized how the full range of interactions could impact on the structuring of ILs at surfaces and the effect these may have on viscosity.
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Affiliation(s)
- Richard P Matthews
- Department of Chemistry, Faculty of Natural Sciences, Imperial College London, London, SW7 2AZ, UK
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14
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Hettige JJ, Kashyap HK, Margulis CJ. Communication: Anomalous temperature dependence of the intermediate range order in phosphonium ionic liquids. J Chem Phys 2014; 140:111102. [DOI: 10.1063/1.4867900] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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15
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16
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Niedermeyer H, Hallett JP, Villar-Garcia IJ, Hunt PA, Welton T. Mixtures of ionic liquids. Chem Soc Rev 2013; 41:7780-802. [PMID: 22890419 DOI: 10.1039/c2cs35177c] [Citation(s) in RCA: 348] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Simple ionic liquids have long been held to be designer solvents, based upon the ability to independently vary their cations and anions. The formation of mixtures of ionic liquids increases this synthetic flexibility. We review the available literature of these ionic liquid mixtures to identify how their properties change and the possibility for their application.
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18
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Abstract
This paper summarizes the scientific trends associated with the rapid development of the technique of high-energy X-ray diffraction over the past decade pertaining to the field of liquids, glasses, and amorphous materials. The measurement of high-quality X-ray structure factors out to large momentum transfers leads to high-resolution pair distribution functions which can be directly compared to theory or combined with data from other experimental techniques. The advantages of combining highly penetrating radiation with low angle scattering are outlined together with the data analysis procedure and formalism. Also included are advances in high-energy synchrotron beamline instrumentation, sample environment equipment, and an overview of the role of simulation and modeling for interpreting data from disordered materials. Several examples of recent trends in glass and liquid research are described. Finally, directions for future research are considered within the context of past and current developments in the field.
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Affiliation(s)
- C. J. Benmore
- Department of Physics, Arizona State University, Tempe, AZ 85287-1604, USA
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19
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Macchiagodena M, Ramondo F, Triolo A, Gontrani L, Caminiti R. Liquid Structure of 1-Ethyl-3-methylimidazolium Alkyl Sulfates by X-ray Scattering and Molecular Dynamics. J Phys Chem B 2012; 116:13448-58. [DOI: 10.1021/jp306982e] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
| | - Fabio Ramondo
- Department of Physical and Chemical
Sciences, University of L’Aquila, Italy
| | - Alessandro Triolo
- Istituto Struttura
della Materia, Consiglio Nazionale delle Ricerche, Rome, Italy
| | - Lorenzo Gontrani
- Department
of Chemistry, University of Rome “Sapienza”, P. le
Aldo Moro 5, I 00185 Rome, Italy
| | - Ruggero Caminiti
- Department
of Chemistry, University of Rome “Sapienza”, P. le
Aldo Moro 5, I 00185 Rome, Italy
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20
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Guchhait B, Daschakraborty S, Biswas R. Medium decoupling of dynamics at temperatures ∼100 K above glass-transition temperature: A case study with (acetamide + lithium bromide/nitrate) melts. J Chem Phys 2012; 136:174503. [DOI: 10.1063/1.4705315] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Song X, Hamano H, Minofar B, Kanzaki R, Fujii K, Kameda Y, Kohara S, Watanabe M, Ishiguro SI, Umebayashi Y. Structural heterogeneity and unique distorted hydrogen bonding in primary ammonium nitrate ionic liquids studied by high-energy X-ray diffraction experiments and MD simulations. J Phys Chem B 2012; 116:2801-13. [PMID: 22372592 DOI: 10.1021/jp209561t] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Liquid structure and the closest ion-ion interactions in a series of primary alkylammonium nitrate ionic liquids [C(n)Am(+)][NO(3)(-)] (n = 2, 3, and 4) were studied by means of high-energy X-ray diffraction (HEXRD) experiments with the aid of molecular dynamics (MD) simulations. Experimental density and X-ray structure factors are in good accordance with those evaluated with MD simulations. With regard to liquid structure, characteristic peaks appeared in the low Q (Q: a scattering vector) region of X-ray structure factors S(Q)'s for all ionic liquids studied here, and they increased in intensity with a peak position shift toward the lower Q side by increasing the alkyl chain length. Experimentally evaluated S(Q(peak))(r(max)) functions, which represent the S(Q) intensity at a peak position of maximum intensity Q(peak) as a function of distance (actually a integration range r(max)), revealed that characteristic peaks in the low Q region are related to the intermolecular anion-anion correlation decrease in the r range of 10-12 Å. Appearance of the peak in the low Q region is probably related to the exclusion of the correlations among ions of the same sign in this r range by the alkyl chain aggregation. From MD simulations, we found unique and rather distorted NH···O hydrogen bonding between C(n)Am(+) (n = 2, 3, and 4) and NO(3)(-) in these ionic liquids regardless of the alkyl chain length. Subsequent ab initio calculations for both a molecular complex C(2)H(5)NH(2)···HONO(2) and an ion pair C(2)H(5)NH(3)(+)···ONO(2)(-) revealed that such distorted hydrogen bonding is specific in a liquid state of this family of ionic liquids, though the linear orientation is preferred for both the N···HO hydrogen bonding in a molecular complex and the NH···O one in an ion pair. Finally, we propose our interpretation of structural heterogeneity in PILs and also in APILs.
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Affiliation(s)
- Xuedan Song
- Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
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22
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Russina O, Triolo A. New experimental evidence supporting the mesoscopic segregation model in room temperature ionic liquids. Faraday Discuss 2012; 154:97-109; discussion 189-220, 465-71. [DOI: 10.1039/c1fd00073j] [Citation(s) in RCA: 182] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Fujii K, Kanzaki R, Takamuku T, Kameda Y, Kohara S, Kanakubo M, Shibayama M, Ishiguro SI, Umebayashi Y. Experimental evidences for molecular origin of low-Q peak in neutron/x-ray scattering of 1-alkyl-3-methylimidazolium bis(trifluoromethanesulfonyl)amide ionic liquids. J Chem Phys 2011; 135:244502. [DOI: 10.1063/1.3672097] [Citation(s) in RCA: 132] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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24
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Umebayashi Y, Hamano H, Seki S, Minofar B, Fujii K, Hayamizu K, Tsuzuki S, Kameda Y, Kohara S, Watanabe M. Liquid Structure of and Li+ Ion Solvation in Bis(trifluoromethanesulfonyl)amide Based Ionic Liquids Composed of 1-Ethyl-3-methylimidazolium and N-Methyl-N-propylpyrrolidinium Cations. J Phys Chem B 2011; 115:12179-91. [DOI: 10.1021/jp2072827] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yasuhiro Umebayashi
- Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Hiroshi Hamano
- Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Shiro Seki
- Materials Science Research Laboratory, Central Research Institute of Electric Power Industry (CRIEPI), 2-11-1, Iwado-kita, Komae, Tokyo 201-8511, Japan
| | - Babak Minofar
- Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Kenta Fujii
- Neutron Scattering Laboratory, Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Kikuko Hayamizu
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Center, Tsukuba, Ibaraki, 305-8565, Japan
| | - Seiji Tsuzuki
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Center, Tsukuba, Ibaraki, 305-8565, Japan
| | - Yasuo Kameda
- Department of Material and Biological Chemistry, Faculty of Science, Yamagata University, 1-4-12 Kojirakawa-machi, Yamagata 990-8560, Japan
| | - Shinji Kohara
- Japan Synchrotron Radiation Research Institute (JASRI), Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Masayoshi Watanabe
- Department of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai Hodogaya-ku, Yokohama 240-8501, Japan
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25
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Zheng W, Mohammed A, Hines LG, Xiao D, Martinez OJ, Bartsch RA, Simon SL, Russina O, Triolo A, Quitevis EL. Effect of Cation Symmetry on the Morphology and Physicochemical Properties of Imidazolium Ionic Liquids. J Phys Chem B 2011; 115:6572-84. [DOI: 10.1021/jp1115614] [Citation(s) in RCA: 153] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | | | | | | | - Olga Russina
- Department of Chemistry, University of Rome “Sapienza”, Rome, Italy
| | - Alessandro Triolo
- Istituto Struttura della Materia, National Research Council of Italy, Rome, Italy
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Aoun B, Goldbach A, González MA, Kohara S, Price DL, Saboungi ML. Nanoscale heterogeneity in alkyl-methylimidazolium bromide ionic liquids. J Chem Phys 2011; 134:104509. [DOI: 10.1063/1.3563540] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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