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Koyakkat M, Ishida T, Fujita K, Shirota H. Low-Frequency Spectra of Hydrated Ionic Liquids with Kosmotropic and Chaotropic Anions. J Phys Chem B 2024; 128:4171-4182. [PMID: 38640467 DOI: 10.1021/acs.jpcb.4c01255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2024]
Abstract
In this study, we investigated the water concentration dependence of the intermolecular vibrations of two hydrated ionic liquids (ILs), cholinium dihydrogen phosphate ([ch][dhp]) and cholinium bromide ([ch]Br), using femtosecond Raman-induced Kerr effect spectroscopy (fs-RIKES). The anions of the former and latter hydrated ILs are kosmotropic and chaotropic, respectively. We found that the spectral peak of ∼50 cm-1 shifted to the low-frequency side in hydrated [ch][dhp], indicating the weakening of its intermolecular interactions. In contrast, no change in the peak frequency of the low-frequency band at ∼50 cm-1 was observed with increasing water concentration in hydrated [ch]Br. The vibrational density of states (VDOS) spectra generated from molecular dynamics (MD) simulations were in qualitative agreement with the experimental results. Decomposition analysis of the VDOS spectra for each component revealed that the red shift of the low-frequency band in the hydrated [ch][dhp] upon water addition was essentially due to the contributions of anions and water rather than that of the cholinium cation. We also found from the low-frequency spectra of the two hydrated ILs that they differed in the concentration dependence of the 180 cm-1 band, which is assigned as a hindered translational motion of water molecules combined to form O···O stretching motions. From the relationship between the peak frequency of the low-frequency band and the bulk parameter, which is the square root of the surface tension divided by the density, we found that the peak frequency in the hydrated IL with kosmotropic [dhp]- depends on the bulk parameter, similar to the case for an aqueous solution of the typical deep eutectic solvent reline. However, the peak frequency of the hydrated IL with chaotropic Br- is constant with the bulk parameter.
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Affiliation(s)
- Maharoof Koyakkat
- Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Tateki Ishida
- Institute for Molecular Science and Research Center for Computational Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Kyoko Fujita
- Department of Pathophysiology, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Hideaki Shirota
- Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
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Wang Y, Tian G. Theoretical Insight into the Imidazolium-Based Ionic Liquid Interface Structure and Differential Capacitance on Au(111): Effects of the Cationic Substituent Group. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:14231-14245. [PMID: 37751408 DOI: 10.1021/acs.langmuir.3c01381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
Electric double layers (EDLs) play a key role in the electrochemical and energy storage of supercapacitors. It is important to understand the structure and properties of EDLs. In this work, quantum chemical calculations and molecular dynamics (MD) simulations are used to study the microstructure of EDLs of four different substituents of imidazolium-based bis(trifluoromethylsulfonyl)imide ionic liquids (ILs) on the Au(111) surface. It is shown that the particle interactions influence the different arrangements of the anion and cation. More alkyl substitutions and longer alkyl chains result in a higher ELUMO and thus a stronger interaction energy between cations and electrodes. Strong interactions produce linear patterns of anions/cations on the electrode and a maximum value of differential capacitance near PZC, whereas weak interactions generate worm-like patterns of anions/cations on Au(111) and a minimum value of differential capacitance near the PZC. We hold the opinion that the alkyl substitution has more effects on the EDLs. Our analysis provides a new perspective on EDLs structures at the atomic and molecular level. This study provides a good basis and guidance for further understanding the interface phenomena and characteristics of ionic liquids in electrochemical and energy device applications.
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Affiliation(s)
- Yue Wang
- State Key Laboratory of Complex Non-ferrous Metal Resource Clean Utilization, Kunming University of Science and Technology, Kunming 650093, Yunnan, China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
- Yunnan Open University, Kunming 650223, China
| | - Guocai Tian
- State Key Laboratory of Complex Non-ferrous Metal Resource Clean Utilization, Kunming University of Science and Technology, Kunming 650093, Yunnan, China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
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Ando M, Tashiro A, Kawano M, Peng Y, Takamuku T, Shirota H. Exploring the Microscopic Aspects of 1-Methyl-3-octylimidazolium Tetrafluoroborate Mixtures with Formamide, N-Methylformamide, and N, N-Dimethylformamide by Multiple Spectroscopic Techniques and Computations. J Phys Chem B 2023; 127:3870-3887. [PMID: 37093658 DOI: 10.1021/acs.jpcb.2c09102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
The microscopic aspects of 1-methyl-3-octylimidazolium tetrafluoroborate ([MOIm][BF4]) mixtures with formamide (FA), N-methylformamide (NMF), and N,N-dimethylformamide (DMF) were investigated using spectroscopic techniques of femtosecond Raman-induced Kerr effect spectroscopy (fs-RIKES), FT-IR, and NMR. Molecular dynamics simulations and quantum chemistry calculations were also performed. According to fs-RIKES, the first moment of the low-frequency spectrum bands mainly originating from the intermolecular vibrations in the [MOIm][BF4]/FA and [MOIm][BF4]/DMF systems changed gradually with the molecular liquid mole fraction XML but that in the [MOIm][BF4]/NMF system was constant up to XNMF = 0.7 and then gradually increased in the range of XNMF ≥ 0.7. Excluding the contribution of the 2D hydrogen-bonding network due to the presence of FA in the low-frequency spectrum band, the XML dependence of the normalized first moment of the low-frequency band in the [MOIm][BF4]/FA and [MOIm][BF4]/NMF systems revealed that the normalized first moment did not remarkably change in the range of XML < 0.7 but drastically increased in XML ≥ 0.7. FT-IR results indicated that the amide C═O band shifted to the low-frequency side with increasing XML for the three mixtures due to the hydrogen bonds. The imidazolium ring C-H band also showed a similar tendency to the amide C═O band. 19F NMR probed the microenvironment of [BF4]- in the mixtures. The [MOIm][BF4]/NMF and [MOIm][BF4]/DMF systems showed an up-field shift of the F atoms of the anion with increasing XML, and the [MOIm][BF4]/FA system exhibited a down-field shift. Steep changes in the chemical shifts were confirmed in the region of XML > 0.8. On the basis of the quantum chemistry calculations, the observed chemical shifts with increasing XML were mainly attributed to the many-body interactions of ions and amides for the [MOIm][BF4]/FA and [MOIm][BF4]/DMF systems. Meanwhile, the long distance between the cation and the anion was due to the high dielectric medium for the [MOIm][BF4]/NMF system, which led to an up-field shift.
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Affiliation(s)
- Masatoshi Ando
- Department of Chemistry, Graduate School of Science, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Atsuya Tashiro
- Department of Chemistry and Applied Chemistry, Graduate School of Science and Engineering, Saga University, Honjo-machi, Saga 840-8502, Japan
| | - Masahiro Kawano
- Department of Chemistry and Applied Chemistry, Graduate School of Science and Engineering, Saga University, Honjo-machi, Saga 840-8502, Japan
| | - Yue Peng
- Department of Chemistry, Graduate School of Science, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Toshiyuki Takamuku
- Faculty of Science and Engineering, Saga University, Honjo-machi, Saga 840-8502, Japan
| | - Hideaki Shirota
- Department of Chemistry, Graduate School of Science, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
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Shirota H, Rajbangshi J, Koyakkat M, Baksi A, Cao M, Biswas R. Low-frequency spectra of reline and its mixtures with water: A comparative study based on femtosecond Raman-induced Kerr effect spectroscopy and molecular dynamics simulations. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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5
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Ando M, Ohta K, Ishida T, Koido R, Shirota H. Physical Properties and Low-Frequency Polarizability Anisotropy and Dipole Responses of Phosphonium Bis(fluorosulfonyl)amide Ionic Liquids with Pentyl, Ethoxyethyl, or 2-(Ethylthio)ethyl Group. J Phys Chem B 2023; 127:542-556. [PMID: 36602430 DOI: 10.1021/acs.jpcb.2c07466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
This study compared the physical properties, e.g., glass transition temperature, melting point, viscosity, density, surface tension, and electrical conductivity, and the low-frequency spectra under 200 cm-1 of three synthesized ionic liquids (ILs), triethylpentylphosphonium bis(fluorosulfonyl)amide ([P2225][NF2]), ethoxyethyltriethylphosphonium bis(fluorosulfonyl)amide ([P222(2O2)][NF2]), and triethyl[2-(ethylthio)ethyl]phosphonium bis(fluorosulfonyl)amide ([P222(2S2)][NF2]), at various temperatures using femtosecond Raman-induced Kerr effect spectroscopy (fs-RIKES) and terahertz time-domain spectroscopy (THz-TDS). The [P222(2S2)][NF2] had the highest viscosity and glass transition temperature, whereas the [P222(2O2)][NF2] had the lowest. Among the three ILs, the [P222(2S2)][NF2] had the highest density and surface tension, and the [P222(2O2)][NF2] had the highest electrical conductivity. The RIKES and THz-TDS spectral line shapes for the three ILs varied significantly. For the [P2225][NF2], molecular dynamics simulations successfully reproduced the line shapes of the experimental spectra and indicated that the RIKES spectrum was mainly due to the cation and cross-term and their rotational motions, whereas the THz-TDS spectrum was mainly due to the anion and its translational motion. This shows that it is desirable to utilize both fs-RIKES and THz-TDS methods to reveal molecular motions at the low-frequency domain. The [P222(2S2)][NF2] had higher frequency peaks and broader bands in the low-frequency spectra via fs-RIKES and THz-TDS than those for the [P2225][NF2] and [P222(2O2)][NF2].
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Affiliation(s)
- Masatoshi Ando
- Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Kaoru Ohta
- Molecular Photoscience Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Tateki Ishida
- Department of Theoretical and Computational Molecular Science, Institute for Molecular Science and Research Center for Computational Science, 38 Nishigonaka, Myodaiji, Okazaki 444-8585, Japan
| | - Ryohei Koido
- Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Hideaki Shirota
- Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
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Mero A, Guglielmero L, D'Andrea F, Pomelli CS, Guazzelli L, Koutsoumpos S, Tsonos G, Stavrakas I, Moutzouris K, Mezzetta A. Influence of the cation partner on levulinate ionic liquids properties. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118850] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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7
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Anggraini Y, Yusuf A, Wonorahardjo S, Kurnia D, Viridi S, Magdalena Sutjahja I. Role of C2 Methylation and Anion Type on the Physicochemical and Thermal Properties of Imidazolium-Based Ionic Liquids. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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8
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Charge delocalization and hyperpolarizability in ionic liquids. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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9
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Ando M, Shirota H. Low-Frequency Spectra of 1-Methyl-3-octylimidazolium Tetrafluoroborate Mixtures with Poly(ethylene glycol) by Femtosecond Raman-Induced Kerr Effect Spectroscopy. J Phys Chem B 2021; 125:12006-12019. [PMID: 34694116 DOI: 10.1021/acs.jpcb.1c07079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This is the first report on low-frequency spectra of ionic liquid (IL)/polymer mixtures using femtosecond Raman-induced Kerr effect spectroscopy. We studied mixtures of 1-methyl-3-octylimidazolium tetrafluoroborate ([MOIm][BF4]) and poly(ethylene glycol) (PEG) with Mn = 400 (PEG400) at various concentrations. To elucidate the unique features of the IL/polymer mixture system, mixtures of PEG400 with a molecular liquid, 1-octhylimidazole (OIm), which is a neutral analog of the cation, were also studied. In addition, mixtures of [MOIm][BF4] with ethylene glycol (EG) and poly(ethylene glycol) with Mn = 4000 (PEG4000) were also investigated. The first moments of broad low-frequency spectra, mainly due to intermolecular vibrations for the [MOIm][BF4]/PEG400 and OIm/PEG400, increased slightly with increasing concentration of PEG400, indicating that microscopic intermolecular interactions, in general, are slightly enhanced. We also compared the [MOIm][BF4] mixtures with EG, PEG400, and PEG4000 at concentrations of 5 and 10 wt % PEG or EG. The low-frequency spectra of samples with the same concentrations were quite similar, but a comparison of the normalized spectra showed that the spectral intensity in the low-frequency region below ∼50 cm-1 of the [MOIm][BF4] mixtures with PEG400 and PEG4000 is somewhat lower than that of the [MOIm][BF4] mixtures with EG. Although the effect of the polymer is small compared to other polymer solution systems, this feature is attributed to a suppression of translational motion in the mixtures of [MOIm][BF4] with PEG compared to the mixtures of [MOIm][BF4] with EG due to the greater mass of PEG than EG. Density, surface tension, viscosity, and electrical conductivity were also estimated. From Walden plots, it was found that the [MOIm][BF4]/PEG4000 system showed more ideal electrical conductive behavior than the [MOIm][BF4]/PEG400 and [MOIm][BF4]/EG systems.
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Affiliation(s)
- Masatoshi Ando
- Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Hideaki Shirota
- Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
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10
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Fallah Z, Zare EN, Khan MA, Iftekhar S, Ghomi M, Sharifi E, Tajbakhsh M, Nikfarjam N, Makvandi P, Lichtfouse E, Sillanpaa M, Varma RS. Ionic liquid-based antimicrobial materials for water treatment, air filtration, food packaging and anticorrosion coatings. Adv Colloid Interface Sci 2021; 294:102454. [PMID: 34102390 DOI: 10.1016/j.cis.2021.102454] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 05/25/2021] [Accepted: 05/25/2021] [Indexed: 02/08/2023]
Abstract
Efforts to widen the scope of ionic liquids applications across diverse research areas have flourished in the last two decades with developments in understanding and tailoring their physical, chemical, and biological properties. The promising applications of ionic liquids-based materials as antimicrobial systems is due to their ability and flexibility to be tailored in varying sizes, morphologies, and surface charges. Ionic liquids are also considered as greener materials. Common methods for the preparation of ionic liquid-based materials include crosslinking, loading, grafting, and combination of ionic liquids with other polymeric materials. Recent research focuses on the tuning of the biological properties to design novel ionic liquids-based antimicrobial materials. Here, the properties, synthesis and applications of ionic liquids and ionic liquids-based materials are reviewed with focus on antimicrobial activities applied to water treatment, air filtration, food packaging, and anticorrosion.
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11
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Ferreira VC, Zanchet L, Monteiro WF, da Trindade LG, de Souza MO, Correia RRB. Theoretical and experimental comparative study of nonlinear properties of imidazolium cation based ionic liquids. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115391] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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12
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Chang TM, Billeck SE. Structure, Molecular Interactions, and Dynamics of Aqueous [BMIM][BF 4] Mixtures: A Molecular Dynamics Study. J Phys Chem B 2021; 125:1227-1240. [PMID: 33497566 DOI: 10.1021/acs.jpcb.0c09731] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Molecular dynamics simulations with many-body polarizable force fields were carried out to investigate the thermodynamic, structural, and dynamic properties of aqueous solutions of 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]). The radial distribution functions exhibit well-defined features, revealing favored structural correlations between [bmim]+, [BF4]-, and H2O. The addition of water is shown to alter ionic liquid structural organizations by replacing counterions in the coordination shells and disrupt the cation-anion network. At low water concentration, the majority of water molecules are isolated from each other and have lower average dipole moment than that in pure water. With increasing hydration level, while [bmim][BF4] ionic network breaks up and becomes isolated ion pairs or free ions in the dilute limit, water begins to form clusters of increasing sizes and eventually forms a percolating network. As a result, the average water dipole moment increases and approaches its bulk value. Water is also observed to have a substantial influence on the dynamics of ionic liquids. At low water content, the cation and anion have similar diffusion coefficients due to the correlated ionic motion of long-lived ion pairs. As the water concentration increases, both ions exhibit greater mobility and faster rotations from the breakup of ionic network. Consequently, the ionic conductivity of [bmim][BF4] aqueous solutions rises with increasing water composition.
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Affiliation(s)
- Tsun-Mei Chang
- Department of Chemistry, University of Wisconsin-Parkside, Kenosha, Wisconsin 53141, United States
| | - Stephanie E Billeck
- Department of Chemistry, University of Wisconsin-Parkside, Kenosha, Wisconsin 53141, United States
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13
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Meng D, Sagala S, Aquino AJ, Quitevis EL. Orientational and low-frequency (0–450 cm−1) dynamics of methyl methacrylate: OHD-RIKES measurements and DFT calculations. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Pardon A, Bonhomme O, Gaillard C, Brevet PF, Benichou E. Nonlinear optical signature of nanostructural transition in ionic liquids. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114976] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Shirota H, Ando M, Kakinuma S, Takahashi K. Ultrafast Dynamics in Nonaromatic Cation Based Ionic Liquids: A Femtosecond Raman-Induced Kerr Effect Spectroscopic Study. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200198] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hideaki Shirota
- Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Masatoshi Ando
- Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Shohei Kakinuma
- Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Kotaro Takahashi
- Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
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16
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Ando M, Kawano M, Tashiro A, Takamuku T, Shirota H. Low-Frequency Spectra of 1-Methyl-3-octylimidazolium Tetrafluoroborate Mixtures with Methanol, Acetonitrile, and Dimethyl Sulfoxide: A Combined Study of Femtosecond Raman-Induced Kerr Effect Spectroscopy and Molecular Dynamics Simulations. J Phys Chem B 2020; 124:7857-7871. [DOI: 10.1021/acs.jpcb.0c04870] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Masatoshi Ando
- Department of Chemistry, Graduate School of Science, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Masahiro Kawano
- Department of Chemistry and Applied Chemistry, Graduate School of Science and Engineering, Saga University, Honjo-machi, Saga 840-8502, Japan
| | - Atsuya Tashiro
- Department of Chemistry and Applied Chemistry, Graduate School of Science and Engineering, Saga University, Honjo-machi, Saga 840-8502, Japan
| | - Toshiyuki Takamuku
- Faculty of Science and Engineering, Saga University, Honjo-machi, Saga 840-8502, Japan
| | - Hideaki Shirota
- Department of Chemistry, Graduate School of Science, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
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Kakinuma S, Shirota H. Femtosecond Raman-Induced Kerr Effect Study of Temperature-Dependent Intermolecular Dynamics in Pyrrolidinium-Based Ionic Liquids: Effects of Anion Species. J Phys Chem B 2019; 123:1307-1323. [DOI: 10.1021/acs.jpcb.8b10269] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Ramenskaya L, Grishina E, Kudryakova N. Physicochemical features of short-chain 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)-imide ionic liquids containing equilibrium water absorbed from air. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.10.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Gurung E, Meng D, Xue L, Tamas G, Lynden-Bell RM, Quitevis EL. Optical Kerr effect spectroscopy of CS 2 in monocationic and dicationic ionic liquids: insights into the intermolecular interactions in ionic liquids. Phys Chem Chem Phys 2018; 20:26558-26569. [PMID: 30306995 DOI: 10.1039/c8cp04503h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A comparative study of the intermolecular dynamics of CS2 in monocationic and dicationic ionic liquids (ILs) was performed using optical heterodyne-detected Raman-induced Kerr effect spectroscopy (OHD-RIKES). The reduced spectral densities (RSDs) of mixtures of CS2 in 1-alkyl-3-methylimidazolium bis[(trifluoromethane)sulfonyl]amide ([CnC1im][NTf2] for n = 3-5) and 1,2n-bis(3-methylimidazolium-1-yl) alkane bis[(trifluoromethane)sulfonyl]amide ([(C1im)2C2n][NTf2]2 for n = 3-5) were investigated as a function of concentration at 295 K. An additivity model was used to obtain the CS2 contribution to the RSD of a mixture in the 0-200 cm-1 region. One of the aims of this study is to show how CS2 can be used as a probe of intermolecular/interionic interactions in ILs. The concentrations were chosen such that the CS2-to-imidazolium ring mole fraction of a mixture with [(C1im)2C2n][NTf2]2 (DIL(2n)) is the same as that of a mixture with [CnC1im][NTf2] (MIL(n)). As found previously for CS2 in monocationic ILs, the intermolecular spectrum of CS2 in dicationic ILs is lower in frequency and narrower than that of neat CS2. The new result is that the intermolecular spectrum of CS2 is higher in frequency in DIL(2n) than in the corresponding MIL(n), indicating that CS2 molecules experience a stiffer potential in dicationic ILs than in monocationic ILs. The intermolecular dynamics of CS2 being higher in frequency in DIL(2n) than in MIL(n) is consistent with recent molecular dynamics simulations (Lynden-Bell and Quitevis, J. Chem. Phys., 2018, 148, 193844) that show the stiffer potential is the result of greater confinement of CS2 in DIL(2n) than in MIL(n). We also show in this study how effects due to dilution and the intermolecular potential seen by a solute molecule in solution are unraveled.
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Affiliation(s)
- Eshan Gurung
- Department of Chemistry & Biochemistry, Texas Tech University, Lubbock, TX 79409, USA.
| | - Dujuan Meng
- Department of Chemistry & Biochemistry, Texas Tech University, Lubbock, TX 79409, USA.
| | - Lianjie Xue
- Department of Chemistry & Biochemistry, Texas Tech University, Lubbock, TX 79409, USA.
| | - George Tamas
- Department of Chemistry & Biochemistry, Texas Tech University, Lubbock, TX 79409, USA.
| | - Ruth M Lynden-Bell
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Edward L Quitevis
- Department of Chemistry & Biochemistry, Texas Tech University, Lubbock, TX 79409, USA.
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Sun W, Zheng W, Xie W, Zhao L. Understanding Structure–Property Relationship of SO 3H-Functionalized Ionic Liquids together with Sulfuric Acid in Catalyzing Isobutane Alkylation with C4 Olefin. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b03923] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Weizhen Sun
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Weizhong Zheng
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Wenxiu Xie
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Ling Zhao
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- School of Chemistry & Chemical Engineering, XinJiang University, Urumqi 830046, China
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21
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Kakinuma S, Ramati S, Wishart JF, Shirota H. Effects of aromaticity in cations and their functional groups on the temperature dependence of low-frequency spectrum. J Chem Phys 2018; 148:193805. [DOI: 10.1063/1.5010066] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Shohei Kakinuma
- Department of Nanomaterial Science, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Sharon Ramati
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - James F. Wishart
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - Hideaki Shirota
- Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
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22
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Abstract
Ionic liquids are liquid salts at ambient temperature composed of organic cations and organic/inorganic anions. Outstanding physical and chemical properties of ionic liquids lead to increasing application in scientific and industrial field. Ionic liquids have been already investigated by different spectroscopic techniques, including terahertz (THz) time-domain spectroscopy. The usual THz frequency range extends up to 2-3 THz, a relatively narrow band, which can only show the intermolecular vibrational modes. Here, we report about broadband THz spectroscopy of ionic liquids up to 13 THz. Bandwidth of intermolecular absorption band presents an unexpected behavior and strong sharp intramolecular absorptions are shown. In addition, we found violation of the approximation of harmonic oscillator used to predict the peak shift of intermolecular absorption band.
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Affiliation(s)
- Sen Mou
- Dipartimento di Fisica "Ettore Pancini" , Università di Napoli "Federico II", Complesso Universitario di Monte Sant'Angelo , via Cintia , 80126 Napoli , Italy
| | - Andrea Rubano
- Dipartimento di Fisica "Ettore Pancini" , Università di Napoli "Federico II", Complesso Universitario di Monte Sant'Angelo , via Cintia , 80126 Napoli , Italy.,ISASI-Institute of Applied Sciences and Intelligent Systems , Consiglio Nazionale delle Ricerche , via Campi Flegrei 34 , 80078 Pozzuoli , Italy
| | - Domenico Paparo
- ISASI-Institute of Applied Sciences and Intelligent Systems , Consiglio Nazionale delle Ricerche , via Campi Flegrei 34 , 80078 Pozzuoli , Italy
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23
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Alammar T, Hamm I, Grasmik V, Wark M, Mudring AV. Microwave-Assisted Synthesis of Perovskite SrSnO3 Nanocrystals in Ionic Liquids for Photocatalytic Applications. Inorg Chem 2017; 56:6920-6932. [DOI: 10.1021/acs.inorgchem.7b00279] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tarek Alammar
- Department of Materials
Science and Engineering and Center for Catalysis, Iowa State University, Ames, Iowa 50011, United States
- Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
- Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstraße 150, D-44801 Bochum, Germany
| | - Ines Hamm
- Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstraße 150, D-44801 Bochum, Germany
| | - Viktoria Grasmik
- Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstraße 150, D-44801 Bochum, Germany
| | - Michael Wark
- Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstraße 150, D-44801 Bochum, Germany
- Institute of Chemistry, Technical Chemistry, Carl von Ossietzky Universität Oldenburg, Carl-von-Ossietzky-Str. 9-11, D-26129 Oldenburg, Germany
| | - Anja-Verena Mudring
- Department of Materials
Science and Engineering and Center for Catalysis, Iowa State University, Ames, Iowa 50011, United States
- Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
- Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstraße 150, D-44801 Bochum, Germany
- Department of Materials and Environmental Chemistry, Stockholm University, Svante Arrhenius
väg 16 C, 106 91 Stockholm, Sweden
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24
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Xue L, Bardak F, Tamas G, Quitevis EL. Comparative study of the intermolecular dynamics of imidazolium-based ionic liquids with linear and branched alkyl chains: OHD-RIKES measurements. Phys Chem Chem Phys 2017; 19:4661-4672. [PMID: 28124692 DOI: 10.1039/c6cp08263g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This article describes a comparative study of the low-frequency (0-450 cm-1) Kerr spectra of the branched 1-(iso-alkyl)-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ([(N - 2)mCN-1C1im][NTf2] with N = 3-7) ionic liquids (ILs) and that of the linear 1-(n-alkyl)-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ([CNC1im][NTf2] with N = 2-7) ILs. The spectra were obtained by use of femtosecond optical heterodyne-detected Raman-induced Kerr effect spectroscopy (OHD-RIKES). The intermolecular spectrum of a branched IL is similar to that of a linear IL that is of the same alkyl chain length rather than of the same number of carbon atoms in the alkyl chain. This similarity and the lack of a correlation of the first spectral moments and widths of the intermolecular spectra with chain length is mainly attributed to the increase in the dispersion contribution to the total molar cohesive energy being compensated by stretching of the ionic network due to the increasing size of the nonpolar domains, which is dependent only on the length of the alkyl chain.
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Affiliation(s)
- Lianjie Xue
- Department of Chemistry & Biochemistry, Texas Tech University, Lubbock, TX 79409, USA.
| | - Fehmi Bardak
- Department of Chemistry & Biochemistry, Texas Tech University, Lubbock, TX 79409, USA.
| | - George Tamas
- Department of Chemistry & Biochemistry, Texas Tech University, Lubbock, TX 79409, USA.
| | - Edward L Quitevis
- Department of Chemistry & Biochemistry, Texas Tech University, Lubbock, TX 79409, USA.
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25
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Abstract
Vibrational spectroscopy has continued use as a powerful tool to characterize ionic liquids since the literature on room temperature molten salts experienced the rapid increase in number of publications in the 1990's. In the past years, infrared (IR) and Raman spectroscopies have provided insights on ionic interactions and the resulting liquid structure in ionic liquids. A large body of information is now available concerning vibrational spectra of ionic liquids made of many different combinations of anions and cations, but reviews on this literature are scarce. This review is an attempt at filling this gap. Some basic care needed while recording IR or Raman spectra of ionic liquids is explained. We have reviewed the conceptual basis of theoretical frameworks which have been used to interpret vibrational spectra of ionic liquids, helping the reader to distinguish the scope of application of different methods of calculation. Vibrational frequencies observed in IR and Raman spectra of ionic liquids based on different anions and cations are discussed and eventual disagreements between different sources are critically reviewed. The aim is that the reader can use this information while assigning vibrational spectra of an ionic liquid containing another particular combination of anions and cations. Different applications of IR and Raman spectroscopies are given for both pure ionic liquids and solutions. Further issues addressed in this review are the intermolecular vibrations that are more directly probed by the low-frequency range of IR and Raman spectra and the applications of vibrational spectroscopy in studying phase transitions of ionic liquids.
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Affiliation(s)
- Vitor H Paschoal
- Laboratório de Espectroscopia Molecular, Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo , Av. Prof. Lineu Prestes 748, São Paulo 05508-000, Brazil
| | - Luiz F O Faria
- Laboratório de Espectroscopia Molecular, Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo , Av. Prof. Lineu Prestes 748, São Paulo 05508-000, Brazil
| | - Mauro C C Ribeiro
- Laboratório de Espectroscopia Molecular, Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo , Av. Prof. Lineu Prestes 748, São Paulo 05508-000, Brazil
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26
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Kakinuma S, Ishida T, Shirota H. Femtosecond Raman-Induced Kerr Effect Study of Temperature-Dependent Intermolecular Dynamics in Imidazolium-Based Ionic Liquids: Effects of Anion Species and Cation Alkyl Groups. J Phys Chem B 2017; 121:250-264. [DOI: 10.1021/acs.jpcb.6b11009] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Tateki Ishida
- Department
of Theoretical and Computational Molecular Science, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
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27
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Lahiri A, Li G, Olschewski M, Endres F. Influence of Polar Organic Solvents in an Ionic Liquid Containing Lithium Bis(fluorosulfonyl)amide: Effect on the Cation-Anion Interaction, Lithium Ion Battery Performance, and Solid Electrolyte Interphase. ACS APPLIED MATERIALS & INTERFACES 2016; 8:34143-34150. [PMID: 27960439 DOI: 10.1021/acsami.6b12751] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Ionic liquid-organic solvent mixtures have recently been investigated as potential battery electrolytes. However, contradictory results with these mixtures have been shown for battery performance. In this manuscript, we studied the influence of the addition of polar organic solvents into the ionic liquid electrolyte 1 M lithium bis(fluorosulfonyl)amide (LiFSI)-1-butyl-1-methylpyrrolidinium bis(fluorosulfonyl)amide ([Py1,4]FSI) and tested it for lithium ion battery applications. From infrared and Raman spectroscopy, clear changes in the lithium solvation and cation-anion interactions in the ionic liquid were observed on addition of organic solvents. From the lithiation/delithiation studies on electrodeposited Ge, the storage capacity for the ionic liquid-highly polar organic solvent (acetonitrile) mixture was found to be the highest at low C-rates (0.425 C) compared to using an ionic liquid alone and ionic liquid-less polar solvent (dimethyl carbonate) mixtures. Furthermore, XPS and AFM were used to evaluate the solid electrolyte interphase (SEI) and to correlate its stability with Li storage capacity.
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Affiliation(s)
- Abhishek Lahiri
- Institute of Electrochemistry, Clausthal University of Technology , Arnold-Sommerfeld-Strasse 6, 38678 Clausthal-Zellerfeld, Germany
| | - Guozhu Li
- Institute of Electrochemistry, Clausthal University of Technology , Arnold-Sommerfeld-Strasse 6, 38678 Clausthal-Zellerfeld, Germany
| | - Mark Olschewski
- Institute of Electrochemistry, Clausthal University of Technology , Arnold-Sommerfeld-Strasse 6, 38678 Clausthal-Zellerfeld, Germany
| | - Frank Endres
- Institute of Electrochemistry, Clausthal University of Technology , Arnold-Sommerfeld-Strasse 6, 38678 Clausthal-Zellerfeld, Germany
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28
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Shirota H, Kakinuma S, Takahashi K, Tago A, Jeong H, Fujisawa T. Ultrafast Dynamics in Aromatic Cation Based Ionic Liquids: A Femtosecond Raman-Induced Kerr Effect Spectroscopic Study. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2016. [DOI: 10.1246/bcsj.20160085] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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29
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Hu YF, Zhang XM, Qi JG, Yin LY. The configuration exchanging theory for transport properties and glass formation temperature of ionic liquids. J Chem Phys 2016; 143:204501. [PMID: 26627962 DOI: 10.1063/1.4936282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Understanding molecular motion in terms of molecular structure is an important issue for microscopic understanding of the nature of transport properties and glass transition, and for design of structured materials to meet specific demands in various applications. Herein, a novel molecular mechanism is proposed to connect macroscopic motion in ionic liquids with molecular structure via conformational conversions of the constituent ions or of the cation-anion pairs. New equations for description of relaxation time, diffusion coefficient, molar conductivity, and viscosity of ionic liquids are established. The equation parameters, which were determined from the temperature dependent heat capacities, self-diffusion coefficients, molar conductivities, and viscosities of typical ionic liquids, were used to produce predictions for the corresponding properties of other ionic liquids and for the glass transition temperatures of representative ionic liquids. All predictions are in nice agreements with the experimental results.
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Affiliation(s)
- Yu-Feng Hu
- State Key Laboratory of Heavy Oil Processing and High Pressure Fluid Phase Behavior and Property Research Laboratory, China University of Petroleum, Beijing 102249, China
| | - Xian-Ming Zhang
- State Key Laboratory of Heavy Oil Processing and High Pressure Fluid Phase Behavior and Property Research Laboratory, China University of Petroleum, Beijing 102249, China
| | - Jian-Guang Qi
- State Key Laboratory of Heavy Oil Processing and High Pressure Fluid Phase Behavior and Property Research Laboratory, China University of Petroleum, Beijing 102249, China
| | - Liu-Yi Yin
- State Key Laboratory of Heavy Oil Processing and High Pressure Fluid Phase Behavior and Property Research Laboratory, China University of Petroleum, Beijing 102249, China
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30
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Goossens K, Lava K, Bielawski CW, Binnemans K. Ionic Liquid Crystals: Versatile Materials. Chem Rev 2016; 116:4643-807. [PMID: 27088310 DOI: 10.1021/cr400334b] [Citation(s) in RCA: 411] [Impact Index Per Article: 51.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This Review covers the recent developments (2005-2015) in the design, synthesis, characterization, and application of thermotropic ionic liquid crystals. It was designed to give a comprehensive overview of the "state-of-the-art" in the field. The discussion is focused on low molar mass and dendrimeric thermotropic ionic mesogens, as well as selected metal-containing compounds (metallomesogens), but some references to polymeric and/or lyotropic ionic liquid crystals and particularly to ionic liquids will also be provided. Although zwitterionic and mesoionic mesogens are also treated to some extent, emphasis will be directed toward liquid-crystalline materials consisting of organic cations and organic/inorganic anions that are not covalently bound but interact via electrostatic and other noncovalent interactions.
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Affiliation(s)
- Karel Goossens
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS) , Ulsan 689-798, Republic of Korea.,Department of Chemistry, KU Leuven , Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium
| | - Kathleen Lava
- Department of Chemistry, KU Leuven , Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium.,Department of Organic and Macromolecular Chemistry, Ghent University , Krijgslaan 281 S4, B-9000 Ghent, Belgium
| | - Christopher W Bielawski
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS) , Ulsan 689-798, Republic of Korea.,Department of Chemistry and Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798, Republic of Korea
| | - Koen Binnemans
- Department of Chemistry, KU Leuven , Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium
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31
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Shirota H, Kakinuma S, Itoyama Y, Umecky T, Takamuku T. Effects of Tetrafluoroborate and Bis(trifluoromethylsulfonyl)amide Anions on the Microscopic Structures of 1-Methyl-3-octylimidazolium-Based Ionic Liquids and Benzene Mixtures: A Multiple Approach by ATR-IR, NMR, and Femtosecond Raman-Induced Kerr Effect Spectroscopy. J Phys Chem B 2016; 120:513-26. [DOI: 10.1021/acs.jpcb.5b10917] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hideaki Shirota
- Department
of Nanomaterial Science and Department of Chemistry, Chiba University, 1-33
Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Shohei Kakinuma
- Department
of Nanomaterial Science and Department of Chemistry, Chiba University, 1-33
Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Yu Itoyama
- Department
of Chemistry and Applied Chemistry, Graduate School of Science and
Engineering, Saga University, Honjo-machi, Saga 840-8502, Japan
| | - Tatsuya Umecky
- Department
of Chemistry and Applied Chemistry, Graduate School of Science and
Engineering, Saga University, Honjo-machi, Saga 840-8502, Japan
| | - Toshiyuki Takamuku
- Department
of Chemistry and Applied Chemistry, Graduate School of Science and
Engineering, Saga University, Honjo-machi, Saga 840-8502, Japan
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32
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Qin J, Zhang G, Ma Z, Li J, Zhou L, Shi X. Effects of ionic structures on shear thickening fluids composed of ionic liquids and silica nanoparticles. RSC Adv 2016. [DOI: 10.1039/c6ra12460g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Shear thickening fluids (STFs) are energy dissipative materials and affected significantly by the properties of the dispersing media.
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Affiliation(s)
- Jianbin Qin
- Department of Applied Chemistry
- School of Science
- Northwestern Polytechnical University
- Xi'an 710072
- P. R. China
| | - Guangcheng Zhang
- Department of Applied Chemistry
- School of Science
- Northwestern Polytechnical University
- Xi'an 710072
- P. R. China
| | - Zhonglei Ma
- Department of Applied Chemistry
- School of Science
- Northwestern Polytechnical University
- Xi'an 710072
- P. R. China
| | - Jiantong Li
- Department of Applied Chemistry
- School of Science
- Northwestern Polytechnical University
- Xi'an 710072
- P. R. China
| | - Lisheng Zhou
- Department of Applied Chemistry
- School of Science
- Northwestern Polytechnical University
- Xi'an 710072
- P. R. China
| | - Xuetao Shi
- Department of Applied Chemistry
- School of Science
- Northwestern Polytechnical University
- Xi'an 710072
- P. R. China
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33
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Shirota H, Kakinuma S. Temperature Dependence of Low-Frequency Spectra in Molten Bis(trifluoromethylsulfonyl)amide Salts of Imidazolium Cations Studied by Femtosecond Raman-Induced Kerr Effect Spectroscopy. J Phys Chem B 2015; 119:9835-46. [DOI: 10.1021/acs.jpcb.5b01776] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hideaki Shirota
- Department of Nanomaterial Science & Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Shohei Kakinuma
- Department of Nanomaterial Science & Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
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34
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Kakinuma S, Shirota H. Dynamic Kerr Effect Study on Six-Membered-Ring Molecular Liquids: Benzene, 1,3-Cyclohexadiene, 1,4-Cyclohexadiene, Cyclohexene, and Cyclohexane. J Phys Chem B 2015; 119:4713-24. [DOI: 10.1021/acs.jpcb.5b00460] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shohei Kakinuma
- Department
of Nanomaterial Science and ‡Department of Chemistry, Chiba University, 1-33
Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Hideaki Shirota
- Department
of Nanomaterial Science and ‡Department of Chemistry, Chiba University, 1-33
Yayoi, Inage-ku, Chiba 263-8522, Japan
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35
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Xue L, Tamas G, Matthews RP, Stone AJ, Hunt PA, Quitevis EL, Lynden-Bell RM. An OHD-RIKES and simulation study comparing a benzylmethylimidazolium ionic liquid with an equimolar mixture of dimethylimidazolium and benzene. Phys Chem Chem Phys 2015; 17:9973-83. [DOI: 10.1039/c5cp00550g] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The Kerr spectra of a mixture of benzene and an ionic liquid are compared to the corresponding benzylated ionic liquid and found to be surprisingly similar.
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Affiliation(s)
- Lianjie Xue
- Department of Chemistry and Biochemistry
- Texas Tech University
- Lubbock
- USA
| | - George Tamas
- Department of Chemistry and Biochemistry
- Texas Tech University
- Lubbock
- USA
| | | | - Anthony J. Stone
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
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36
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Shirota H, Matsuzaki H, Ramati S, Wishart JF. Effects of Aromaticity in Cations and Their Functional Groups on the Low-Frequency Spectra and Physical Properties of Ionic Liquids. J Phys Chem B 2014; 119:9173-87. [DOI: 10.1021/jp509412z] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | | | - Sharon Ramati
- Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973-5000, United States
| | - James F. Wishart
- Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973-5000, United States
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37
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Wang H, Li C, Gao M, Fang F, Wang W, Ma M, Wang X. Effects of room temperature ionic liquids on fluorescence properties of bisphenol A in β-cyclodextrin. J Mol Liq 2014. [DOI: 10.1016/j.molliq.2014.10.039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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38
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Khatun S, Castner EW. Ionic Liquid–Solute Interactions Studied by 2D NOE NMR Spectroscopy. J Phys Chem B 2014; 119:9225-35. [DOI: 10.1021/jp509861g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Sufia Khatun
- Department of Chemistry and
Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Edward W. Castner
- Department of Chemistry and
Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
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39
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Biswas R, Das A, Shirota H. Low-frequency collective dynamics in deep eutectic solvents of acetamide and electrolytes: A femtosecond Raman-induced Kerr effect spectroscopic study. J Chem Phys 2014; 141:134506. [DOI: 10.1063/1.4897207] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Ranjit Biswas
- Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, J. D. Block, Sec. III, Salt Lake, Kolkata 700 098, West Bengal, India
| | - Anuradha Das
- Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, J. D. Block, Sec. III, Salt Lake, Kolkata 700 098, West Bengal, India
| | - Hideaki Shirota
- Department of Nanomaterial Science and Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
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40
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Lynden-Bell RM, Xue L, Tamas G, Quitevis EL. Local structure and intermolecular dynamics of an equimolar benzene and 1,3-dimethylimidazolium bis[(trifluoromethane)sulfonyl]amide mixture: Molecular dynamics simulations and OKE spectroscopic measurements. J Chem Phys 2014; 141:044506. [DOI: 10.1063/1.4890529] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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41
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Mirzaei M, Amirtaimoury N. Temperature-induced aggregation ionic liquid dispersive liquid-liquid microextraction method for separation trace amount of cobalt ion. JOURNAL OF ANALYTICAL CHEMISTRY 2014. [DOI: 10.1134/s1061934814060112] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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42
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Xue L, Tamas G, Gurung E, Quitevis EL. Probing the interplay between electrostatic and dispersion interactions in the solvation of nonpolar nonaromatic solute molecules in ionic liquids: An OKE spectroscopic study of CS2/[CnC1im][NTf2] mixtures (n = 1–4). J Chem Phys 2014; 140:164512. [DOI: 10.1063/1.4872038] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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43
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Sonnleitner T, Turton DA, Waselikowski S, Hunger J, Stoppa A, Walther M, Wynne K, Buchner R. Dynamics of RTILs: A comparative dielectric and OKE study. J Mol Liq 2014. [DOI: 10.1016/j.molliq.2013.09.019] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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44
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Fumino K, Ludwig R. Analyzing the interaction energies between cation and anion in ionic liquids: The subtle balance between Coulomb forces and hydrogen bonding. J Mol Liq 2014. [DOI: 10.1016/j.molliq.2013.07.009] [Citation(s) in RCA: 128] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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45
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Wagner V, Schulz PS, Wasserscheid P. Asymmetric hydrogenation catalysis via ion-pairing in chiral ionic liquids. J Mol Liq 2014. [DOI: 10.1016/j.molliq.2013.10.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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46
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Nagasawa Y, Miyasaka H. Ultrafast solvation dynamics and charge transfer reactions in room temperature ionic liquids. Phys Chem Chem Phys 2014; 16:13008-26. [DOI: 10.1039/c3cp55465a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this perspective, we review the recent studies concerning the liquid structure and solvation dynamics of ionic liquids, and their influence upon electron transfer and charge transfer reactions.
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Affiliation(s)
- Yutaka Nagasawa
- Division of Frontier Materials Science
- Department of Materials Engineering Science
- Graduate School of Engineering Science
- Osaka University
- Toyonaka, Japan
| | - Hiroshi Miyasaka
- Division of Frontier Materials Science
- Department of Materials Engineering Science
- Graduate School of Engineering Science
- Osaka University
- Toyonaka, Japan
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Fumino K, Reimann S, Ludwig R. Probing molecular interaction in ionic liquids by low frequency spectroscopy: Coulomb energy, hydrogen bonding and dispersion forces. Phys Chem Chem Phys 2014; 16:21903-29. [DOI: 10.1039/c4cp01476f] [Citation(s) in RCA: 179] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Low vibrational spectroscopy provides detailed information on the strength and type of interaction and their influence on the properties of ionic liquids.
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Affiliation(s)
- Koichi Fumino
- Universität Rostock
- Institut für Chemie
- 18059 Rostock, Germany
| | | | - Ralf Ludwig
- Universität Rostock
- Institut für Chemie
- 18059 Rostock, Germany
- Leibniz-Institut für Katalyse an der Universität Rostock e.V
- 18059 Rostock, Germany
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Mandal PK, Paul A, Samanta A. Room Temperature Ionic Liquids as Media for Photophysical Studies. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200600028] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Shirota H. Intermolecular/Interionic Vibrations of 1-Methyl-3-n-octylimidazolium Tetrafluoroborate Ionic Liquid and Benzene Mixtures. J Phys Chem B 2013; 117:7985-95. [DOI: 10.1021/jp402456g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Hideaki Shirota
- Department of Nanomaterial Science
and Department of
Chemistry, Chiba University, 1-33 Yayoi,
Inage-ku Chiba 263-8522, Japan
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