1
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Stanković I, Dašić M, Jovanović M, Martini A. Effects of Water Content on the Transport and Thermodynamic Properties of Phosphonium Ionic Liquids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:9049-9058. [PMID: 38641549 DOI: 10.1021/acs.langmuir.4c00372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/21/2024]
Abstract
We present a numerical investigation of the influence of water content on the dynamic properties of a family of phosphonium-based room-temperature ionic liquids. The study presents a compelling correlation between structural changes in water-ionic liquid solutions and thermodynamic and transport properties across diverse systems. The results for phosphonium ionic liquids are compared with 1-butyl-3-methylimidazolium hexaphosphate ([bmim]PF6) as a reference. Through this approach, phosphonium cation structure-related characteristics can be identified and placed within the broader context of ionic liquids. These insights are underpinned by observed changes in interaction energy, boiling point, diffusion rate, and viscosity, highlighting the crucial role of water molecules in weakening the strength of interactions between ions within the ionic liquid. The investigation also explains temperature-dependent trends in phosphonium cations, showing that alkyl group length and molecular symmetry are important tuning parameters for the strength of Coulomb interactions. These results contribute to a refined understanding of phosphonium ionic liquid behavior in the presence of water, offering valuable insights for optimizing their use in diverse fields.
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Affiliation(s)
- Igor Stanković
- Scientific Computing Laboratory, Center for the Study of Complex Systems, Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, Belgrade 11080, Serbia
| | - Miljan Dašić
- Scientific Computing Laboratory, Center for the Study of Complex Systems, Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, Belgrade 11080, Serbia
| | - Mateja Jovanović
- Scientific Computing Laboratory, Center for the Study of Complex Systems, Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, Belgrade 11080, Serbia
| | - Ashlie Martini
- Department of Mechanical Engineering, University of California, Merced, California 95343, United States
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2
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Pan B, Karadaghi LR, Brutchey RL, Malmstadt N. A Multistep, Multicomponent Extraction and Separation Microfluidic Route to Recycle Water-Miscible Ionic Liquid Solvents. Ind Eng Chem Res 2024; 63:489-497. [PMID: 38223501 PMCID: PMC10785803 DOI: 10.1021/acs.iecr.3c03312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/16/2023] [Accepted: 12/06/2023] [Indexed: 01/16/2024]
Abstract
Recycling ionic liquid (IL) solvents can reduce the lifecycle cost of these expensive solvents. Liquid-liquid extraction is the most straightforward approach to purify IL solvents and is typically performed with an immiscible washing agent (e.g., water). Herein, we describe a recycling route for water-miscible ILs in which direct recycling is usually challenging. We use hydrophobic ILs as accommodating agents to draw the water-miscible IL from the aqueous washing stream. A biphasic slug flow of the mixed ILs and water is then separated by using a membrane. The water-miscible IL can then be drawn out from the mixed IL phase with acidified water and dried under vacuum. Both the water-miscible IL and the accommodating agent are then recycled. Here, we demonstrated a proof-of-concept of this process by recycling 1-butyl-3-methylimidazolium trifluoromethanesulfonate (BMIM-OTf) in the presence of the accommodating agent 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (BMIM-NTf2) and acidified water. We then demonstrated the capacity to recycle 1-butyl-1-methylpyrrolidinium triflate (BMPYRR-OTf) from a realistic synthetic application: Pt nanoparticle synthesis in the water-miscible IL.
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Affiliation(s)
- Bin Pan
- Mork
Family Department of Chemical Engineering and Materials Science, University of Southern California, 925 Bloom Walk, Los Angeles, California 90089-1211, United States
| | - Lanja R. Karadaghi
- Department
of Chemistry, University of Southern California, 840 Downey Way, Los Angeles, California 90089-0744, United States
| | - Richard L. Brutchey
- Department
of Chemistry, University of Southern California, 840 Downey Way, Los Angeles, California 90089-0744, United States
| | - Noah Malmstadt
- Mork
Family Department of Chemical Engineering and Materials Science, University of Southern California, 925 Bloom Walk, Los Angeles, California 90089-1211, United States
- Department
of Chemistry, University of Southern California, 840 Downey Way, Los Angeles, California 90089-0744, United States
- Department
of Biomedical Engineering, University of
Southern California, 1042 Downey Way, Los Angeles, California 90089-0260, United States
- USC
Norris Comprehensive Cancer Center, University
of Southern California, 1441 Eastlake Ave, Los Angeles, California 90033, United States
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3
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Kimura Y, Akai R, Shimada K, Hirata M, Fujii K, Endo T. Anomalous Dependence of Translational Diffusion on the Water Mole Fraction for Solute Molecules Dissolved in a 1-Butyl-3-methylimidazolium Tetrafluoroborate/Water Mixture. J Phys Chem B 2023. [PMID: 37310854 DOI: 10.1021/acs.jpcb.3c01978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Translational diffusion coefficients of carbon monoxide (CO), diphenylacetylene (DPA), and diphenylcyclopropenone (DPCP) were determined in mixtures of 1-butyl-3-methylimidazolium tetrafluoroborate ([C4mim]BF4) and water using transient grating spectroscopy at different mole fractions of water (xw). While DPA exhibited a larger diffusion coefficient than DPCP at low water mole fractions (xw < 0.7), as observed for conventional liquids and ionic liquids (ILs), it was smaller at high mole fractions (xw > 0.9). The apparent molecular radius of DPA determined using the Stokes-Einstein equation at xw > 0.9 is close to the radius of an IL cluster in a water pool as determined from small-angle neutron scattering experiments (J. Bowers et al., Langmuir, 2004, 20, 2192-2198), suggesting that the DPA molecules are trapped in IL clusters in the water pool and move together. The solvation state of DPCP in the mixture was studied using Raman spectroscopy. Dramatically strong water/DPCP hydrogen bonding was observed at higher water mole fractions, suggesting that DPCP is located near the cluster interfaces. The large diffusion coefficient of DPCP suggests that hopping of DPCP between IL clusters occurs through hydrogen bonding with water.
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Affiliation(s)
- Yoshifumi Kimura
- Division of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, 2-1, Tatara Miyakodani, Kyotanabe 610-0321, Kyoto, Japan
- Department of Applied Chemistry, Graduate School of Science and Engineering, Doshisha University, 2-1, Tatara Miyakodani, Kyotanabe-City 610-0321, Kyoto, Japan
| | - Rie Akai
- Division of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, 2-1, Tatara Miyakodani, Kyotanabe 610-0321, Kyoto, Japan
| | - Kohei Shimada
- Department of Applied Chemistry, Graduate School of Science and Engineering, Doshisha University, 2-1, Tatara Miyakodani, Kyotanabe-City 610-0321, Kyoto, Japan
| | - Mizuki Hirata
- Division of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, 2-1, Tatara Miyakodani, Kyotanabe 610-0321, Kyoto, Japan
| | - Kaori Fujii
- Division of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, 2-1, Tatara Miyakodani, Kyotanabe 610-0321, Kyoto, Japan
| | - Takatsugu Endo
- Division of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, 2-1, Tatara Miyakodani, Kyotanabe 610-0321, Kyoto, Japan
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4
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Arteaga A, Ranathunga DTS, Qu J, Biguetti CC, Nielsen SO, C Rodrigues D. Exogenous Protein Delivery of Ionic Liquid-Mediated HMGB1 Coating on Titanium Implants. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:2204-2217. [PMID: 36716434 DOI: 10.1021/acs.langmuir.2c02688] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Strategies for modifying titanium (Ti) implant surfaces are becoming increasingly popular to enhance osseointegration during acute and inflammatory healing stages. In this study, two dicationic imidazolium-based ionic liquids (IonLs) containing phenylalanine and methionine anions (IonL-Phe(1,10-bis(3-methylimidazolium-1-yl)decane diphenylalanine) and IonL-Met(1,10-bis(3-methylimidazolium-1-yl)decane dimethionine)) were investigated to stably deliver exogenous proteins on Ti to promote osseointegration. The protein selected for this study is High-Mobility Group Box 1 (HMGB1), which recruits inflammatory and mesenchymal stem cells to the implantation site, contributing to healing. To explore IonL-Ti interactions and HMGB1 stability on the IonL-coated surface, experimental characterization techniques including X-ray photoelectron spectroscopy, scanning electron microscopy, dynamic scanning calorimetry (DSC), and liquid chromatography mass spectrometry (LC-MS) were used along with molecular dynamics (MD) computer simulations to provide a detailed molecular level description. Results show well-structured IonL molecules on the Ti surface that impact protein crystallization and coating morphology. IonL cations and anions were found to bind strongly to oppositely charged residues of the protein. LC-MS/MS reveals that HMGB1 B-box lysine residues bind strongly to the IonLs. Stronger interactions of HMGB1 with Ion-Phe in contrast to IonL-Met results in greater retention capacity of HMGB1 in the IonL-Phe coating. Overall, this study provides evidence that the selected IonLs strongly interact with HMGB1, which can be a potential surface treatment for bone-implantable Ti devices.
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Affiliation(s)
- Alexandra Arteaga
- Department of Bioengineering, The University of Texas at Dallas, Richardson, Texas75080, United States
| | - Dineli T S Ranathunga
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas75080, United States
| | - Jiayi Qu
- School of Dentistry, University of Texas Health San Antonio, San Antonio, Texas78229, United States
| | - Claudia C Biguetti
- School of Medicine, University of Texas Rio Grande Valley, Edinburg, Texas78539, United States
| | - Steven O Nielsen
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas75080, United States
| | - Danieli C Rodrigues
- Department of Bioengineering, The University of Texas at Dallas, Richardson, Texas75080, United States
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5
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Kurchavov D, Rustambek U, Haddad M, Ottochian A, Lefèvre G, Ciofini I, Lair V, Volovitch P. Influence of PEG-containing cation on molecular state of water in water – Acetate based ionic liquids mixtures. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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6
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The Influence of Various Cationic Group on Polynorbornene Based Anion Exchange Membranes with Hydrophobic Large Steric Hindrance Arylene Substituent. CHINESE JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1007/s10118-022-2786-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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7
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Pabst F, Kraus J, Kloth S, Steinrücken E, Kruteva M, Radulescu A, Vogel M, Blochowicz T. Evidence of supercoolable nanoscale water clusters in an amorphous ionic liquid matrix. J Chem Phys 2021; 155:174501. [PMID: 34742203 DOI: 10.1063/5.0066180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Nanoscale water clusters in an ionic liquid matrix, also called "water pockets," were previously found in some mixtures of water with ionic liquids containing hydrophilic anions. However, in these systems, at least partial crystallization occurs upon supercooling. In this work, we show for mixtures of 1-butyl-3-methylimidazolium dicyanamide with water that none of the components crystallizes up to a water content of 72 mol. %. The dynamics of the ionic liquid matrix is monitored from above room temperature down to the glass transition by combining depolarized dynamic light scattering with broadband dielectric and nuclear magnetic resonance spectroscopy, revealing that the matrix behaves like a common glass former and stays amorphous in the whole temperature range. Moreover, we demonstrate by a combination of Raman spectroscopy, small angle neutron scattering, and molecular dynamics simulation that, indeed, nanoscale water clusters exist in this mixture.
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Affiliation(s)
- Florian Pabst
- TU Darmstadt, Institute for Condensed Matter Physics, 64289 Darmstadt, Germany
| | - Jennifer Kraus
- TU Darmstadt, Institute for Condensed Matter Physics, 64289 Darmstadt, Germany
| | - Sebastian Kloth
- TU Darmstadt, Institute for Condensed Matter Physics, 64289 Darmstadt, Germany
| | - Elisa Steinrücken
- TU Darmstadt, Institute for Condensed Matter Physics, 64289 Darmstadt, Germany
| | - Margarita Kruteva
- Jülich Centre for Neutron Science JCNS (JCNS-1), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Aurel Radulescu
- Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Forschungszentrum Jülich GmbH, 85747 Garching, Germany
| | - Michael Vogel
- TU Darmstadt, Institute for Condensed Matter Physics, 64289 Darmstadt, Germany
| | - Thomas Blochowicz
- TU Darmstadt, Institute for Condensed Matter Physics, 64289 Darmstadt, Germany
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8
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Ishii K, Sakka T, Nishi N. Potential dependence of the ionic structure at the ionic liquid/water interface studied using MD simulation. Phys Chem Chem Phys 2021; 23:22367-22374. [PMID: 34608475 DOI: 10.1039/d1cp02484a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The structure at the electrochemical liquid/liquid interface between water (W) and trioctylmethylammonium bis(nonafluorobutanesulfonyl)amide, a hydrophobic ionic liquid (IL), was studied using molecular dynamics (MD) simulation in which the interfacial potential difference was controlled. On the IL side of the IL/W interface, ionic multilayers were found in the number density distribution of IL ions whereas monolayer-thick charge accumulation was found in the charge density distribution. This suggests that the potential screening is completed within the first ionic layer and the effect of overlayers on the potential is marginal. The W side of the interface showed the diffuse electric double layer as expected, and unexpectedly unveiled a density depletion layer, indicating that the IL surface is hydrophobic enough to be repelled by water. The IL ions in the first ionic layer showed anisotropic orientation even at the potential of zero charge, in which the polar moieties were oriented to the W side and the non-polar moieties preferred parallel orientation to the interface. When an electric field is applied across the interface so that the IL ions are more accumulated, the non-polar moieties changed the parallel preference to more oriented to the IL side due to the dipolar nature of the IL ions. The ionic orientations at the IL/W interface were compared with those at other two IL interfaces, the vacuum and graphene interfaces of the IL. The parallel preference of the non-polar moieties was similar at the IL/graphene interface but different from the perpendicular orientation toward the vacuum side at the IL/vacuum interface. The comparison suggests that water behaves like a wall that repels IL ions like a solid electrode.
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Affiliation(s)
- Kosuke Ishii
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan.
| | - Tetsuo Sakka
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan.
| | - Naoya Nishi
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan.
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9
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Khraisheh M, AlMomani F, Inamdar M, Hassan MK, Al-Ghouti MA. Ionic liquids application for wastewater treatment and biofuel production: A mini review. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116421] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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10
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Marion S, Vučemilović-Alagić N, Špadina M, Radenović A, Smith AS. From Water Solutions to Ionic Liquids with Solid State Nanopores as a Perspective to Study Transport and Translocation Phenomena. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2100777. [PMID: 33955694 DOI: 10.1002/smll.202100777] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 04/01/2021] [Indexed: 06/12/2023]
Abstract
Solid state nanopores are single-molecular devices governed by nanoscale physics with a broad potential for technological applications. However, the control of translocation speed in these systems is still limited. Ionic liquids are molten salts which are commonly used as alternate solvents enabling the regulation of the chemical and physical interactions on solid-liquid interfaces. While their combination can be challenging to the understanding of nanoscopic processes, there has been limited attempts on bringing these two together. While summarizing the state of the art and open questions in these fields, several major advances are presented with a perspective on the next steps in the investigations of ionic-liquid filled nanopores, both from a theoretical and experimental standpoint. By analogy to aqueous solutions, it is argued that ionic liquids and nanopores can be combined to provide new nanofluidic functionalities, as well as to help resolve some of the pertinent problems in understanding transport phenomena in confined ionic liquids and providing better control of the speed of translocating analytes.
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Affiliation(s)
- Sanjin Marion
- Laboratory of Nanoscale Biology, Institute of Bioengineering, School of Engineering, EPFL, 1015, Lausanne, Switzerland
| | - Nataša Vučemilović-Alagić
- Group for Computational Life Sciences, Ruđer Bošković Institute, Division of Physical Chemistry, 10000, Zagreb, Croatia
- PULS Group, Physics Department, Interdisciplinary Center for Nanostructured Films, FAU Erlangen-Nürnberg, 91058, Erlangen, Germany
| | - Mario Špadina
- Group for Computational Life Sciences, Ruđer Bošković Institute, Division of Physical Chemistry, 10000, Zagreb, Croatia
| | - Aleksandra Radenović
- Laboratory of Nanoscale Biology, Institute of Bioengineering, School of Engineering, EPFL, 1015, Lausanne, Switzerland
| | - Ana-Sunčana Smith
- Group for Computational Life Sciences, Ruđer Bošković Institute, Division of Physical Chemistry, 10000, Zagreb, Croatia
- PULS Group, Physics Department, Interdisciplinary Center for Nanostructured Films, FAU Erlangen-Nürnberg, 91058, Erlangen, Germany
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11
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Zhao PP, Deng C, Zhao ZY, Wan L, Huang C, Wang YZ. Intelligently Thermoresponsive Ionic Liquid toward Molecular Firefighting and Thermal Energy Management. ACS APPLIED MATERIALS & INTERFACES 2021; 13:15680-15689. [PMID: 33759485 DOI: 10.1021/acsami.1c01599] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Hydrocarbon-based phase change materials (PCMs) are accompanied by an inherent fire risk, which is hindering their further application especially in construction. Molecular-firefighting PCMs can be ideal and promising candidates to simultaneously ensure the highly efficient energy management and fire safety of PCMs. In this work, two novel phosphorus/nitrogen-containing ionic liquids ([DP][MI] and [DP][TEA]), composed of imidazole (MI) or triethylamine (TEA) cations and dicetyl phosphate (DP) anion, were synthesized for fire-proofing thermal energy management. The fire risk assessment confirmed that the extinguishing time of prepared [DP][MI] and [DP][TEA] was greatly shortened to 20 s and 3.5 min from 45 min for controlled sample, respectively. Moreover, the thermal enthalpy of [DP][MI] reached about 99.0 J g-1. In addition, [DP][MI] and [DP][TEA] achieved low supercooling extents of 2.2 and 4.4 °C, separately. Both molecular firefighting and efficient energy management were achieved for [DP][MI] and [DP][TEA]. As applied in wood-plastic composite which is ubiquitous in construction, [DP][TEA] endowed the composite with temperature-regulating capability of about 10 °C in hut test and remarkably suppressed fire hazard of the composite, displaying a potential application value.
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Affiliation(s)
- Pan-Pan Zhao
- State Key Laboratory of Polymer Materials Engineering, Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Cong Deng
- State Key Laboratory of Polymer Materials Engineering, Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Ze-Yong Zhao
- State Key Laboratory of Polymer Materials Engineering, Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Le Wan
- State Key Laboratory of Polymer Materials Engineering, Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Chi Huang
- State Key Laboratory of Polymer Materials Engineering, Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yu-Zhong Wang
- State Key Laboratory of Polymer Materials Engineering, Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, China
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12
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de Izarra A, Choi C, Jang YH, Lansac Y. Ionic Liquid for PEDOT:PSS Treatment. Ion Binding Free Energy in Water Revealing the Importance of Anion Hydrophobicity. J Phys Chem B 2021; 125:1916-1923. [DOI: 10.1021/acs.jpcb.0c10068] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ambroise de Izarra
- GREMAN, CNRS UMR 7347, Université de Tours, 37200 Tours, France
- Department of Energy Science and Engineering, DGIST, Daegu 42988, Korea
| | - Changwon Choi
- Department of Energy Science and Engineering, DGIST, Daegu 42988, Korea
| | - Yun Hee Jang
- Department of Energy Science and Engineering, DGIST, Daegu 42988, Korea
| | - Yves Lansac
- GREMAN, CNRS UMR 7347, Université de Tours, 37200 Tours, France
- Department of Energy Science and Engineering, DGIST, Daegu 42988, Korea
- Laboratoire de Physique des Solides, CNRS UMR 8502, Université Paris-Saclay, 91405 Orsay, France
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13
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Sajid HU, Kiran R. Improving the wettability of structural steels by employing ionic liquids. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115137] [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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14
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Azevedo AM, Santos JL, Warner IM, Saraiva MLM. GUMBOS and nanoGUMBOS in chemical and biological analysis: A review. Anal Chim Acta 2020; 1133:180-198. [DOI: 10.1016/j.aca.2020.06.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 06/08/2020] [Accepted: 06/09/2020] [Indexed: 12/15/2022]
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15
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Kowsari MH, Torabi SM. Molecular Dynamics Insights into the Nanoscale Structural Organization and Local Interaction of Aqueous Solutions of Ionic Liquid 1-Butyl-3-methylimidazolium Nitrate. J Phys Chem B 2020; 124:6972-6985. [PMID: 32687363 DOI: 10.1021/acs.jpcb.0c01803] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Considering the growing number of applications of the aqueous ionic liquids (ILs), atomistic molecular dynamics (MD) simulations were used to probe the effect of water molar fraction, xw, ranging from 0.00 to 0.90, on the nanoscale local structure of 1-butyl-3-methylimidazolium nitrate, [bmim][NO3], IL. The results prove that, with water addition, the cation-anion, cation-cation, and anion-anion structural correlations are weakened, while strong anion-water and unconventional cation-water hydrogen bonds are formed in the solutions. Water molecules were detected as bridges between nitrate anions, and the water cluster size distribution at different xw's was investigated. Simulation shows a similar pattern of probability densities for water and anion around the acidic hydrogen atoms of the reference cation ring, while both species move away from the cation butyl chain. Increasing the water concentration to xw = 0.90 causes decreasing of the local arrangement of the nearest-neighboring cations, because of the weakening of cation-cation π-π stacking. In addition, this dilution reduces the probability of the in-plane cation-anion conformation, disrupts both the polar ionic network and nonpolar domains, and diminishes the nanoaggregation of the cation butyl chains compared to those of the neat IL. These results can rationalize the origins of the fluidity enhancements and transport property trends upon adding water to the imidazolium-based ILs. The current study proposes a deep atomistic-level insight into the complex coupling between water concentration, microscopic structure, and local interactions of aqueous imidazolium-based ILs with hydrophilic anions.
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Affiliation(s)
- Mohammad H Kowsari
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran.,Center for Research in Climate Change and Global Warming (CRCC), Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - S Mohammad Torabi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
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16
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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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17
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Sas OG, Sánchez PB, González B, Domínguez Á. Removal of phenolic pollutants from wastewater streams using ionic liquids. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116310] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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18
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Cichowska-Kopczyńska I, Aranowski R. Use of pyridinium and pyrrolidinium ionic liquids for removal of toluene from gas streams. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112091] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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Otero-Mato JM, Lesch V, Montes-Campos H, Smiatek J, Diddens D, Cabeza O, Gallego LJ, Varela LM. Solvation in ionic liquid-water mixtures: A computational study. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111273] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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20
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Conrad JA, Kim S, Gordon MS. Ionic liquids from a fragmented perspective. Phys Chem Chem Phys 2019; 21:16878-16888. [PMID: 31359024 DOI: 10.1039/c9cp02836f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The efficacy of using fragmentation methods, such as the effective fragment potential, the fragment molecular orbital and the effective fragment molecular orbital methods is discussed. The advantages and current limitations of these methods are considered, potential improvements are suggested, and a prognosis for the future is provided.
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Affiliation(s)
- Justin A Conrad
- Department of Chemistry, Iowa State University, Ames, IA 50014, USA.
| | - Shinae Kim
- Department of Chemistry, Iowa State University, Ames, IA 50014, USA.
| | - Mark S Gordon
- Department of Chemistry, Iowa State University, Ames, IA 50014, USA.
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21
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Surfactant-mediated enzymatic superactivity in water/ionic liquid mixtures, evaluated on a model hydrolytic reaction catalyzed by α-chymotrypsin. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.03.106] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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22
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McDaniel JG, Verma A. On the Miscibility and Immiscibility of Ionic Liquids and Water. J Phys Chem B 2019; 123:5343-5356. [DOI: 10.1021/acs.jpcb.9b02187] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jesse G. McDaniel
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Archana Verma
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
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23
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Tanner EEL, Piston KM, Ma H, Ibsen KN, Nangia S, Mitragotri S. The Influence of Water on Choline-Based Ionic Liquids. ACS Biomater Sci Eng 2019; 5:3645-3653. [DOI: 10.1021/acsbiomaterials.9b00243] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Eden E. L. Tanner
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, 29 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Kathryn M. Piston
- Department of Biomedical and Chemical Engineering, Syracuse University, 223 Link Hall, Syracuse, New York 13244, United States
| | - Huilin Ma
- Department of Biomedical and Chemical Engineering, Syracuse University, 223 Link Hall, Syracuse, New York 13244, United States
| | - Kelly N. Ibsen
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, 29 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Shikha Nangia
- Department of Biomedical and Chemical Engineering, Syracuse University, 223 Link Hall, Syracuse, New York 13244, United States
| | - Samir Mitragotri
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, 29 Oxford Street, Cambridge, Massachusetts 02138, United States
- Wyss Institute of Biologically Inspired Engineering, Harvard University, 3 Blackfan Circle, Boston, Massachusetts 02115, United States
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24
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Sun YX, Wang YY, Shen BB, Zhang BX, Hu XM. Synthesis and investigation of physico-chemical properties of dicationic ionic liquids. ROYAL SOCIETY OPEN SCIENCE 2018; 5:181230. [PMID: 30662734 PMCID: PMC6304111 DOI: 10.1098/rsos.181230] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 10/23/2018] [Indexed: 06/09/2023]
Abstract
A series of dicationic ionic liquids (ILs) including [C4(MIM)2][PF6]2, [C5(MIM)2][PF6]2, [C6(MIM)2][PF6]2 and [C4(PYR)2][PF6]2 were synthesized. Their thermal stability and melting points were analysed. It was found that dicationic ILs presented important implications in the design of homogeneous and heterogeneous system with water. A homogeneous system of dicationic ILs with water could be formed at a relatively high temperature and then a heterogeneous system was formed when the solution was cooled to a low temperature. The ILs recovered by altering the temperature were obtained in high percentage yields of [C4(MIM)2][PF6]2 (97.6%), [C5(MIM)2][PF6]2 (97.3%), [C6(MIM)2][PF6]2 (98.0%) and [C4(PYR)2][PF6]2 (94.2%). On the other hand, [C4(MIM)2][PF6]2 and [C5(MIM)2][PF6]2 exhibited good solubility in acetonitrile and acetone. A homogeneous system could be achieved with imidazolium-based ILs with a relatively low amount of water and acetonitrile at room temperature. All of the properties of dicationic ILs have a strong correlation with the nature of dications, the linkage chain and the symmetry of dications. Dicationic ILs may provide a new opportunity for some specific applications in order to enable the effective separation and isolation of products.
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Affiliation(s)
- Yi-Xin Sun
- College of Life Science, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Ying-Ying Wang
- College of Life Science, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Bing-Bing Shen
- College of Life Science, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Bi-Xian Zhang
- Heilongjiang Academy of Agricultural Sciences, Harbin 150086, People's Republic of China
| | - Xiao-Mei Hu
- College of Life Science, Northeast Agricultural University, Harbin 150030, People's Republic of China
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25
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Conrad JA, Pruitt SR, Gordon MS. Proton Transfer in 1,2,4-Triazolium Dinitramide: Effect of Aqueous Microsolvation. J Phys Chem A 2018; 122:7443-7454. [PMID: 30129759 DOI: 10.1021/acs.jpca.8b06348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The gas phase proton transfer process in 1,2,4-triazolium dinitramide (TD) was studied using second-order perturbation theory to determine how the presence of one and two water molecules modifies the potential energy surface that connects the ion pair to the neutral pair. The presence of one water molecule can introduce small proton transfer energy barriers that separate the ion pair from the lower-energy neutral pair. These energy barriers are easily surmounted. Reaction paths were determined for single proton transfers and double proton transfers via one water molecule. In the presence of two water molecules, the global minimum is an ion pair, as are most of the lower-energy local minima. Energy barriers for single, double, and triple proton transfers were also found for TD in the presence of two water molecules. One TD ion pair structure with two water molecules has no corresponding neutral pair energy minimum. A quasi-atomic orbital analysis is used to understand the nature of the bonding in the various species studied in this work.
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Affiliation(s)
- Justin A Conrad
- Department of Chemistry , Iowa State University , Ames , Iowa 50011 , United States
| | - Spencer R Pruitt
- Academic & Research Computing , Worcester Polytechnic Institute , Worcester , Massachusetts 01609 , United States
| | - Mark S Gordon
- Department of Chemistry , Iowa State University , Ames , Iowa 50011 , United States
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26
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Lim GS, Klähn M. On the Stability of Proteins Solvated in Imidazolium-Based Ionic Liquids Studied with Replica Exchange Molecular Dynamics. J Phys Chem B 2018; 122:9274-9288. [DOI: 10.1021/acs.jpcb.8b06452] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Geraldine S. Lim
- Institute of High Performance Computing, Agency for Science, Technology and Research, 1 Fusionopolis Way, #16-16, Connexis, Singapore 138632, Republic of Singapore
| | - Marco Klähn
- Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research, 1 Pesek Road, Jurong Island, Singapore 627833, Republic of Singapore
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27
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Prastiawan IBH, Xu J, Ootani Y, Higuchi Y, Ozawa N, Maruyama S, Matsumoto Y, Kubo M. Molecular Interactions between Pentacene and Imidazolium Ionic Liquids: A Molecular Dynamics Study. CHEM LETT 2018. [DOI: 10.1246/cl.180450] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ida Bagus Hendra Prastiawan
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Jingxiang Xu
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Yusuke Ootani
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Yuji Higuchi
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Nobuki Ozawa
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Shingo Maruyama
- Department of Applied Chemistry, Tohoku University, 6-6-07 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi 980-8579, Japan
| | - Yuji Matsumoto
- Department of Applied Chemistry, Tohoku University, 6-6-07 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi 980-8579, Japan
| | - Momoji Kubo
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
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28
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Brown L, Earle MJ, Gîlea MA, Plechkova NV, Seddon KR. Ionic Liquid-Liquid Chromatography: A New General Purpose Separation Methodology. Top Curr Chem (Cham) 2017; 375:74. [PMID: 28799044 PMCID: PMC5552829 DOI: 10.1007/s41061-017-0159-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 07/01/2017] [Indexed: 12/18/2022]
Abstract
Ionic liquids can form biphasic solvent systems with many organic solvents and water, and these solvent systems can be used in liquid-liquid separations and countercurrent chromatography. The wide range of ionic liquids that can by synthesised, with specifically tailored properties, represents a new philosophy for the separation of organic, inorganic and bio-based materials. A customised countercurrent chromatograph has been designed and constructed specifically to allow the more viscous character of ionic liquid-based solvent systems to be used in a wide variety of separations (including transition metal salts, arenes, alkenes, alkanes, bio-oils and sugars).
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Affiliation(s)
- Leslie Brown
- AECS-QuikPrep Ltd, 55 Gower Street, London, WC1 6HQ, UK
| | - Martyn J Earle
- The QUILL Research Centre, School of Chemistry, The Queen's University of Belfast, Stranmillis Road, Belfast, Northern Ireland, BT9 5AG, UK.
| | - Manuela A Gîlea
- The QUILL Research Centre, School of Chemistry, The Queen's University of Belfast, Stranmillis Road, Belfast, Northern Ireland, BT9 5AG, UK
| | - Natalia V Plechkova
- The QUILL Research Centre, School of Chemistry, The Queen's University of Belfast, Stranmillis Road, Belfast, Northern Ireland, BT9 5AG, UK
| | - Kenneth R Seddon
- The QUILL Research Centre, School of Chemistry, The Queen's University of Belfast, Stranmillis Road, Belfast, Northern Ireland, BT9 5AG, UK
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29
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Microstructures, interactions and dynamics properties studies of aqueous guanidinium triflate ionic liquid from molecular dynamics simulations. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.12.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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30
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Brown L, Earle MJ, Gîlea MA, Plechkova NV, Seddon KR. Ionic Liquid–Liquid Separations Using Countercurrent Chromatography: A New General-Purpose Separation Methodology. Aust J Chem 2017. [DOI: 10.1071/ch17004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Liquid–liquid separations based on countercurrent chromatography, in which at least one phase contains an ionic liquid, represent a new empirical approach for the separation of organic, inorganic, or bio-based materials. A custom-designed instrument has been developed and constructed specifically to perform separations (including transition metal salts, arenes, alkenes, alkanes, and sugars) with ionic liquids, and has been demonstrated for use on the 0.1 to 10 g scale.
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31
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Lin JH, Hou SS. Structure and molecular dynamics of sodium dodecylsulfate micelles modified with hydrophilic short-chain imidazolium salts in aqueous solution. J Colloid Interface Sci 2016; 474:78-87. [DOI: 10.1016/j.jcis.2016.04.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 04/09/2016] [Accepted: 04/11/2016] [Indexed: 11/15/2022]
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32
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Sprenger K, Pfaendtner J. Using Molecular Simulation to Study Biocatalysis in Ionic Liquids. Methods Enzymol 2016; 577:419-41. [DOI: 10.1016/bs.mie.2016.05.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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33
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Mehio N, Luo H, Do-Thanh CL, Sun X, Shen Y, Bell JR, Dai S. Separating Rare-Earth Elements with Ionic Liquids. GREEN CHEMISTRY AND SUSTAINABLE TECHNOLOGY 2016. [DOI: 10.1007/978-3-662-47510-2_3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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34
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Nishi N, Uruga T, Tanida H. Potential dependent structure of an ionic liquid at ionic liquid/water interface probed by x-ray reflectivity measurements. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.11.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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35
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Mixtures of amino-acid based ionic liquids and water. J Mol Model 2015; 21:236. [DOI: 10.1007/s00894-015-2783-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 07/31/2015] [Indexed: 10/23/2022]
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36
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Klähn M, Seduraman A. What Determines CO2 Solubility in Ionic Liquids? A Molecular Simulation Study. J Phys Chem B 2015; 119:10066-78. [DOI: 10.1021/acs.jpcb.5b03674] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marco Klähn
- Institute
of Chemical and Engineering Science, Agency for Science, Technology and Research, 1 Pesek Road, Jurong Island, 627833 Singapore
| | - Abirami Seduraman
- Institute
of High Performance Computing, Agency for Science, Technology and Research, 1 Fusionopolis Way, #16-16, Connexis, 138632, Singapore
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37
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Balk A, Holzgrabe U, Meinel L. 'Pro et contra' ionic liquid drugs - Challenges and opportunities for pharmaceutical translation. Eur J Pharm Biopharm 2015; 94:291-304. [PMID: 26070389 DOI: 10.1016/j.ejpb.2015.05.027] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 05/25/2015] [Accepted: 05/26/2015] [Indexed: 12/29/2022]
Abstract
Ionic liquids (ILs) are organic salts with a melting point below 100°C. Active pharmaceutical ingredients (APIs) are transformed into ILs by combining them with typically large yet charged counterions. ILs hold promise to build a large design space for relevant pharmaceutical parameters, particularly for poorly water soluble drugs. It is for this wide design space that ILs may be the entry into the fascinating vision of modifying physico-chemical properties without the need to structurally modify the active pharmaceutical ingredient itself. This extremely intriguing pharmaceutical option is critically discussed including its potential and limitations. The review is starting off with an introduction to the metathesis and characterization of ILs, and leads over to examples for pharmaceutical application, including enhancement of dissolution rate and kinetic solubility and hygroscopicity adaptation, respectively. Tuning biopharmaceutics and toxicology by proper IL design is another focus. The review connects the interrelated chemical, physical, pharmaceutical, and toxicological outcome of API-ILs, serving as guidance for the formulation scientist who aims at expanding ones armamentarium for poorly water soluble APIs while avoiding structural modification, thereof.
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Affiliation(s)
- Anja Balk
- Institute for Pharmacy, Am Hubland, University of Würzburg, DE-97074 Würzburg, Germany
| | - Ulrike Holzgrabe
- Institute for Pharmacy, Am Hubland, University of Würzburg, DE-97074 Würzburg, Germany
| | - Lorenz Meinel
- Institute for Pharmacy, Am Hubland, University of Würzburg, DE-97074 Würzburg, Germany.
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38
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Yaghini N, Nordstierna L, Martinelli A. Effect of water on the transport properties of protic and aprotic imidazolium ionic liquids - an analysis of self-diffusivity, conductivity, and proton exchange mechanism. Phys Chem Chem Phys 2015; 16:9266-75. [PMID: 24714867 DOI: 10.1039/c4cp00527a] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
In this paper we report on the transport properties of protic and aprotic ionic liquids of the imidazolium cation (C2C1Im(+) or C2HIm(+)) and the TFSI(-) or TfO(-) anion as a function of added water. We observe that the self-diffusion coefficient of the ionic species increases upon addition of water, and that the cation diffuses faster than the anion in the entire water concentration range investigated. We also observe that the overall increase of anionic and cationic diffusion coefficients is significant for C2HImTfO while it is rather weak for C2C1ImTFSI, the former being more hydrophilic. Moreover, the difference between cationic and anionic self-diffusivity specifically depends on the structure of the ionic liquid's ions. The degree of ion-ion association has been investigated by comparing the molar conductivity obtained by impedance measurements with the molar conductivity calculated from NMR data using the Nernst-Einstein equation. Our data indicate that the ions are partly dissociated (Λimp/ΛNMR in the range 0.45-0.75) but also that the degree of association decreases in the order C2HImTfO > C2HImTFSI ≈ C2C1ImTfO > C2C1ImTFSI. From these results, it seems that water finds different sites of interaction in the protic and aprotic ionic liquids, with a strong preference for hydrogen bonding to the -NH group (when available) and a stronger affinity to the TfO anion as compared to the TFSI. For the protic ionic liquids, the analysis of (1)H NMR chemical shifts (upon addition of H2O and D2O, respectively) indicates a water-cation interaction of hydrogen bonding nature. In addition, we could probe proton exchange between the -NH group and deuterated water for the protic cation, which occurs at a significantly faster rate if associated with the TfO anion as compared to the TFSI.
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Affiliation(s)
- N Yaghini
- Applied Surface Chemistry, Department of Chemical and Biological Engineering, Chalmers University of Technology, 412 96 Gothenburg, Sweden.
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39
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Täuber K, Lepenies B, Yuan J. Polyvinylpyridinium-type gradient porous membranes: synthesis, actuation and intrinsic cell growth inhibition. Polym Chem 2015. [DOI: 10.1039/c5py00362h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Gradient porous membranes were prepared from a poly(4-vinylpyridinium) polymer together with carboxylic multi-acid compoundsviaelectrostatic complexation.
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Affiliation(s)
- Karoline Täuber
- Max Planck Institute of Colloids and Interfaces
- Dep. of Colloid Chemistry
- 14476 Potsdam
- Germany
| | - Bernd Lepenies
- Max Planck Institute of Colloids and Interfaces
- Dep. of. Biomolecular Systems
- 14195 Berlin
- Germany
- Free University Berlin
| | - Jiayin Yuan
- Max Planck Institute of Colloids and Interfaces
- Dep. of Colloid Chemistry
- 14476 Potsdam
- Germany
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40
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Terranova ZL, Corcelli SA. Molecular dynamics investigation of the vibrational spectroscopy of isolated water in an ionic liquid. J Phys Chem B 2014; 118:8264-72. [PMID: 24650158 DOI: 10.1021/jp501631m] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Experimental studies examining the structure and dynamics of water in ionic liquids (ILs) have revealed local ion rearrangements that occur an order of magnitude faster than complete randomization of the liquid structure. Simulations of an isolated water molecule embedded in 1-butyl-3-methyl imidazolium hexafluorophosphate, [bmim][PF6], were performed to shed insight into the nature of these coupled water-ion dynamics. The theoretical calculations of the spectral diffusion dynamics and the infrared absorption spectra of the OD stretch of isolated HOD in [bmim][PF6] agree well with experiment. The infrared absorption line shape of the OD stretch is narrower and blue-shifted in the IL compared to those in aqueous solution. Decomposition of the OD frequency time correlation function revealed that translational motions of the anions dominate the spectral diffusion dynamics.
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Affiliation(s)
- Z L Terranova
- Department of Chemistry and Biochemistry, University of Notre Dame , Notre Dame, Indiana 46556, United States
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41
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Cao Y, Chen Y, Wang X, Mu T. Predicting the hygroscopicity of imidazolium-based ILs varying in anion by hydrogen-bonding basicity and acidity. RSC Adv 2014. [DOI: 10.1039/c3ra44464c] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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42
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Borodin O, Henderson WA, Fox ET, Berman M, Gobet M, Greenbaum S. Influence of solvent on ion aggregation and transport in PY15TFSI ionic liquid-aprotic solvent mixtures. J Phys Chem B 2013; 117:10581-8. [PMID: 23941158 DOI: 10.1021/jp406541e] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Molecular dynamics (MD) simulations using a many-body polarizable APPLE&P force field have been performed on mixtures of the N-methyl-N-pentylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PY15TFSI) ionic liquid (IL) with three molecular solvents: propylene carbonate (PC), dimethyl carbonate (DMC), and acetonitrile (AN). The MD simulations predict density, viscosity, and ionic conductivity values that agree well with the experimental results. In the solvent-rich regime, the ionic conductivity of the PY15TFSI-AN mixtures was found to be significantly higher than the conductivity of the corresponding -PC and -DMC mixtures, despite the similar viscosity values obtained from both the MD simulations and experiments for the -DMC and -AN mixtures. The significantly lower conductivity of the PY15TFSI-DMC mixtures, as compared to those for PY15TFSI-AN, in the solvent-rich regime was attributed to the more extensive ion aggregation observed for the -DMC mixtures. The PY15TFSI-DMC mixtures present an interesting case where the addition of the organic solvent to the IL results in an increase in the cation-anion correlations, in contrast to what is found for the mixtures with PC and AN, where ion motion became increasingly uncorrelated with addition of solvent. A combination of pfg-NMR and conductivity measurements confirmed the MD simulation predictions. Further insight into the molecular interactions and properties was also obtained using the MD simulations by examining the solvent distribution in the IL-solvent mixtures and the mixture excess properties.
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Affiliation(s)
- Oleg Borodin
- Electrochemistry Branch, Sensor & Electron Devices Directorate, U.S. Army Research Laboratory , Adelphi, Maryland 20783, United States
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43
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Rahman MT, Barikbin Z, Badruddoza AZM, Doyle PS, Khan SA. Monodisperse polymeric ionic liquid microgel beads with multiple chemically switchable functionalities. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:9535-9543. [PMID: 23805857 DOI: 10.1021/la401613w] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We present simple, inexpensive microfluidics-based fabrication of highly monodisperse poly(ionic liquid) microgel beads with a multitude of functionalities that can be chemically switched in facile fashion by anion exchange and further enhanced by molecular inclusion. Specifically, we show how the exquisite control over bead size and shape enables extremely precise, quantitative measurements of anion- and solvent-induced volume transitions in these materials, a crucial feature driving several important applications. Next, by exchanging diverse anions into the synthesized microgel beads, we demonstrate stimuli responsiveness and a multitude of novel functionalities including redox response, controlled release of chemical payloads, magnetization, toxic metal removal from water, and robust, reversible pH sensing. These chemically switchable stimulus-responsive beads are envisioned to open up a vast array of potential applications in portable and preparative chemical analysis, separations and spatially addressed sensing.
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Affiliation(s)
- Md Taifur Rahman
- School of Chemistry and Chemical Engineering, The Queen's University of Belfast, Belfast, BT9 5AG, United Kingdom
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44
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Annapureddy HVR, Dang LX. Pairing Mechanism among Ionic Liquid Ions in Aqueous Solutions: A Molecular Dynamics Study. J Phys Chem B 2013; 117:8555-60. [DOI: 10.1021/jp404839w] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Harsha V. R. Annapureddy
- Physical Sciences Division, Pacific Northwest National Laboratory Richland, Washington 99352, United
States
| | - Liem X. Dang
- Physical Sciences Division, Pacific Northwest National Laboratory Richland, Washington 99352, United
States
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45
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Markovits IIE, Eger WA, Yue S, Cokoja M, Münchmeyer CJ, Zhang B, Zhou MD, Genest A, Mink J, Zang SL, Rösch N, Kühn FE. Activation of Hydrogen Peroxide by Ionic Liquids: Mechanistic Studies and Application in the Epoxidation of Olefins. Chemistry 2013; 19:5972-9. [DOI: 10.1002/chem.201203208] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2012] [Indexed: 11/10/2022]
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46
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Wu Y, Zhang LN, Li JR, Zheng XL, Hong M. Theoretical studies of the 1-ethyl-3-methylimidazolium glycine, [EMIM][Gly], ionic liquid – water mixture — I. Prediction of the solvation and structural properties. CAN J CHEM 2013. [DOI: 10.1139/cjc-2012-0211] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Gaussian-based HF/MP2 and DFT/B3LYP methods have been explored to study the microsolvation of glycine anion with water, [Gly]–(W)n, and 1-ethyl-3-methylimidazolium glycine ionic liquid (IL) with water, [EMIM][Gly](W)n, n = 1–6 and 12. The water molecules are either isolated or aggregated around [Gly]– and [EMIM][Gly]. Their electronic structures have been calculated clearly to verify the molecular state of H2O and the results were used to compare with experiments. The water effect on the interaction energies and local packing of [EMIM][Gly] is considered. We identified an important factor: the variation of [EMIM][Gly](W)n polarity with the different numbers of H2O. As the amount of H2O increases, the polar network is continuously broken up. The dipole moments are changed to be lowest when the H-bonding ability of [Gly]– is almost saturated. Meanwhile, the nonpolar groups of the cation form an enhanced aggregation. Such observation can provide initial insights for the experimental nanostructural evolution in the IL–water mixtures.
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Affiliation(s)
- Yang Wu
- College of Chemistry, Liaoning University, Shenyang 110036, P. R. China
| | - Li-Na Zhang
- College of Chemistry, Liaoning University, Shenyang 110036, P. R. China
| | - Jing-Rui Li
- College of Chemistry, Liaoning University, Shenyang 110036, P. R. China
| | - Xiao-Lin Zheng
- College of Chemistry, Liaoning University, Shenyang 110036, P. R. China
| | - Mei Hong
- College of Chemistry, Liaoning University, Shenyang 110036, P. R. China
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47
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Niazi AA, Rabideau BD, Ismail AE. Effects of Water Concentration on the Structural and Diffusion Properties of Imidazolium-Based Ionic Liquid–Water Mixtures. J Phys Chem B 2013; 117:1378-88. [DOI: 10.1021/jp3080496] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amir A. Niazi
- Aachener
Verfahrenstechnik: Molecular Simulations and
Transformations, Faculty of Mechanical Engineering, RWTH Aachen University, Schinkelstraße 2, 52062 Aachen,
Germany
| | - Brooks D. Rabideau
- Aachener
Verfahrenstechnik: Molecular Simulations and
Transformations, Faculty of Mechanical Engineering, RWTH Aachen University, Schinkelstraße 2, 52062 Aachen,
Germany
| | - Ahmed E. Ismail
- Aachener
Verfahrenstechnik: Molecular Simulations and
Transformations, Faculty of Mechanical Engineering, RWTH Aachen University, Schinkelstraße 2, 52062 Aachen,
Germany
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48
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Nayak PK, Hathorne AP, Bermudez H. Critical solution behavior of poly(N-isopropyl acrylamide) in ionic liquid–water mixtures. Phys Chem Chem Phys 2013; 15:1806-9. [DOI: 10.1039/c2cp44205a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Jones A, Kronenwetter H, Manchanayakage R. Electrochemical reductive coupling of 2-cyclohexen-1-one in a mixture of ionic liquid and water. Electrochem commun 2012. [DOI: 10.1016/j.elecom.2012.09.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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50
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Kohno Y, Ohno H. Ionic liquid/water mixtures: from hostility to conciliation. Chem Commun (Camb) 2012; 48:7119-30. [PMID: 22683915 DOI: 10.1039/c2cc31638b] [Citation(s) in RCA: 223] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water was originally inimical to ionic liquids (ILs) especially in the analysis of their detailed properties. Various data on the properties of ILs indicate that there are two ways to design functions of ionic liquids. The first is to change the structure of component ions, to provide "task-specific ILs". The second is to mix ILs with other components, such as other ILs, organic solvents or water. Mixing makes it easy to control the properties of the solution. In this strategy, water is now a very important partner. Below, we summarise our recent results on the properties of IL/water mixtures. Stable phase separation is an effective method in some separation processes. Conversely, a dynamic phase change between a homogeneous mixture and separation of phases is important in many fields. Analysis of the relation between phase behaviour and the hydration state of the component ions indicates that the pattern of phase separation is governed by the hydrophilicity of the ions. Sufficiently hydrophilic ions yielded ILs that are miscible with water, and hydrophobic ions gave stable phase separation with water. ILs composed of hydrophobic but hydrated ions undergo a dynamic phase change between a homogeneous mixture and separate phases according to temperature. ILs having more than seven water molecules per ion pair undergo this phase transition. These dynamic phase changes are considered, with some examples, and application is made to the separation of water-soluble proteins.
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Affiliation(s)
- Yuki Kohno
- Department of Biotechnology, Tokyo University of Agriculture and Technology, 2-24-16, Koganei, Tokyo, 184-8588, Japan
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