1
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Liu S, Wei R, Ma G, Li A, Conrad O, Luo J. The cohesive properties and pyrolysis mechanism of an aprotic ionic liquid tetrabutylammonium bis(trifluoromethanesulfonyl)imide. SOFT MATTER 2023; 19:6458-6467. [PMID: 37606536 DOI: 10.1039/d3sm00614j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
As the cohesive properties (such as the enthalpy of sublimation) of solid organic salts (or ionic liquids, ILs) are unmeasurable, a method of their indirect determination is proposed in this paper. For this purpose, the thermogravimetric analysis (TGA) and differential scanning calorimetric analysis (DSC) were carried out over a wide range of temperatures. In this study, the mathematical relationship of the thermodynamic properties between the liquid and solid phases of ILs is established using the Born-Fajans-Haber cycle, in which the sum of the vaporization enthalpy of ILs, melting enthalpy and the enthalpy of solid-solid phase transition is regarded as the sublimation enthalpy of solid organic salts. With this method, the cohesive properties of tetrabutylammonium bis(trifluoromethanesulfonyl)imide ([N4444][NTf2]), which is an aprotic IL, were successfully obtained. Additionally, the difference between the lattice energy and the cohesive energy was employed to quantitatively calculate the charge separation distance of single ion pair (r12) in the gas phase of ionic liquids for the first time, which can serve as a standard methodology to measure the closeness in distance between the anion and the cation in a gas phase ion pair. The pyrolysis mechanism of [N4444][NTf2] was also explored.
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Affiliation(s)
- Shijie Liu
- Lab of Electrolytes and Phase Change Materials, College of Materials Science and Engineering & Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Sichuan University, Chengdu 610065, China.
| | - Runhong Wei
- Fujian Ningde Aishuyuncheng New Materials Technology Co., Ltd., Ningde 355200, China
| | - Guangjun Ma
- Chengdu Weilai Engineering Technology Co., Ltd, No. 366 North Section of Hupan Road, Zhengxing Street, Tianfu New District, Chengdu 610299, China
| | - Ailin Li
- College of Science, Civil Aviation University of China, Tianjin 300300, China
| | - Olaf Conrad
- Pajarito Powder LLC, 3600 Osuna Rd, Albuquerque, NM 87109, USA
| | - Jiangshui Luo
- Lab of Electrolytes and Phase Change Materials, College of Materials Science and Engineering & Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Sichuan University, Chengdu 610065, China.
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2
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Naef R, Acree WE. Revision and Extension of a Generally Applicable Group-Additivity Method for the Calculation of the Standard Heat of Combustion and Formation of Organic Molecules. Molecules 2021; 26:6101. [PMID: 34684682 PMCID: PMC8539152 DOI: 10.3390/molecules26206101] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/04/2021] [Accepted: 10/06/2021] [Indexed: 11/20/2022] Open
Abstract
The calculation of the heats of combustion ΔH°c and formation ΔH°f of organic molecules at standard conditions is presented using a commonly applicable computer algorithm based on the group-additivity method. This work is a continuation and extension of an earlier publication. The method rests on the complete breakdown of the molecules into their constituting atoms, these being further characterized by their immediate neighbor atoms. The group contributions are calculated by means of a fast Gauss-Seidel fitting calculus using the experimental data of 5030 molecules from literature. The applicability of this method has been tested by a subsequent ten-fold cross-validation procedure, which confirmed the extraordinary accuracy of the prediction of ΔH°c with a correlation coefficient R2 and a cross-validated correlation coefficient Q2 of 1, a standard deviation σ of 18.12 kJ/mol, a cross-validated standard deviation S of 19.16 kJ/mol, and a mean absolute deviation of 0.4%. The heat of formation ΔH°f has been calculated from ΔH°c using the standard enthalpies of combustion for the elements, yielding a correlation coefficient R2 for ΔH°f of 0.9979 and a corresponding standard deviation σ of 18.14 kJ/mol.
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Affiliation(s)
- Rudolf Naef
- Department of Chemistry, University of Basel, 4003 Basel, Switzerland
| | - William E. Acree
- Department of Chemistry, University of North Texas, Denton, TX 76203, USA;
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3
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Imidazolium Based Ionic Liquids: Unbiased Recovering of Vaporization Enthalpies from Infinite-Dilution Activity Coefficients. Molecules 2021; 26:molecules26195873. [PMID: 34641417 PMCID: PMC8510351 DOI: 10.3390/molecules26195873] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/21/2021] [Accepted: 09/22/2021] [Indexed: 11/17/2022] Open
Abstract
We propose and test an efficient approach for the assessment of the enthalpies of vaporization of ionic liquids at the reference temperature 298.15 K. The approach is based on activity coefficients at infinite dilution of volatile organic solutes in ionic liquids bearing the imidazolium cation of the general formula [Cnmim][Anion].
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4
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Yermalayeu AV, Varfolomeev MA, Verevkin SP. Symmetry vs. asymmetry – Enthalpic differences in imidazolium-based ionic liquids. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114150] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Zhao Y, Liu W, Zhu J, Pei X. A universal cohesive energy estimation equation based on
COSMO. AIChE J 2020. [DOI: 10.1002/aic.16990] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yueqiang Zhao
- Department of Chemical Engineering Jiangsu Ocean University (originally named Huaihai Institute of Technology) Lianyungang Jiangsu People's Republic of China
| | - Weiwei Liu
- Department of Chemical Engineering Jiangsu Ocean University (originally named Huaihai Institute of Technology) Lianyungang Jiangsu People's Republic of China
| | - Jing Zhu
- Department of Chemical Engineering Jiangsu Ocean University (originally named Huaihai Institute of Technology) Lianyungang Jiangsu People's Republic of China
| | - Xiaoqin Pei
- Department of Chemical Engineering Jiangsu Ocean University (originally named Huaihai Institute of Technology) Lianyungang Jiangsu People's Republic of China
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Asakereh Z, Zare M, Shakerzadeh E. Exploring enthalpies of formation of imidazolium-, pyridinium-, and pyrrolidinium-based ionic liquids with dicyanamide anion using quantum chemical methods. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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7
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Nie B, Li R, Wu Y, Yuan X, Zhang W. Theoretical Calculation of the Thermodynamic Properties of 20 Amino Acid Ionic Liquids. J Phys Chem B 2018; 122:10548-10557. [PMID: 30359517 DOI: 10.1021/acs.jpcb.8b06813] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The thermodynamic properties of gas-phase amino acid ionic liquids (AAILs) containing 20 amino acids ([AA]-) and 1-ethyl-3-methylimidazolium ([Emim]+) are studied using a combination of the ab initio method, molecular dynamics simulations, Born-Haber (BH) cycle analysis, and isodesmic reactions. The M06-2X/TZVP method is used to explore the structure and dissociation enthalpies of [Emim][AA] by considering dispersion interaction, and the MP2/Aug-cc-pVTZ method is used to correct these enthalpies. The vaporization enthalpies of all 20 AAILs are calculated by molecular dynamics simulations, and the gas-phase formation enthalpies (Δf H) of the 20 [AA]- anions and [Emim]+ cation are calculated by the density functional theory/M06-2X method and isodesmic reaction approaches. To obtain the Δf H of the AAILs, interconnections in the corresponding BH cycles are evaluated. A systematic study of the 20 [Emim][AA] ion pairs provides some initial factors contributing to the thermodynamic properties of AAILs: including length of the alkyl chain, interatomic electronic effects, steric repulsion from the cyclic group, and H-bonds formed by functional groups. Generally speaking, the results of this work provide insights into the structure-property relationships of not only ILs but also any ionic or molecular substance.
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Clarke CJ, Puttick S, Sanderson TJ, Taylor AW, Bourne RA, Lovelock KRJ, Licence P. Thermal stability of dialkylimidazolium tetrafluoroborate and hexafluorophosphate ionic liquids: ex situ bulk heating to complement in situ mass spectrometry. Phys Chem Chem Phys 2018; 20:16786-16800. [PMID: 29888367 DOI: 10.1039/c8cp01090k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Thermal decomposition (TD) products of the ionic liquids (ILs) [CnC1Im][BF4] and [CnC1Im][PF6] ([CnC1Im]+ = 1-alkyl-3-methylimidazolium, [BF4]- = tetrafluoroborate, and [PF6]- = hexafluorophosphate) were prepared, ex situ, by bulk heating experiments in a bespoke setup. The respective products, CnC1(C3N2H2)BF3 and CnC1(C3N2H2)PF5 (1-alkyl-3-methylimidazolium-2-trifluoroborate and 1-alkyl-3-methylimidazolium-2-pentafluorophosphate), were then vaporized and analyzed by direct insertion mass spectrometry (DIMS) in order to identify their characteristic MS signals. During IL DIMS experiments we were subsequently able, in situ, to identify and monitor signals due to both IL vaporization and IL thermal decomposition. These decomposition products have not been observed in situ during previous analytical vaporization studies of similar ILs. The ex situ preparation of TD products is therefore perfectly complimentary to in situ thermal stability measurements. Experimental parameters such as sample surface area to volume ratios are consequently very important for ILs that show competitive vaporization and thermal decomposition. We have explained these experimental factors in terms of Langmuir evaporation and Knudsen effusion-like conditions, allowing us to draw together observations from previous studies to make sense of the literature on IL thermal stability. Hence, the design of experimental setups are crucial and previously overlooked experimental factors.
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Affiliation(s)
- Coby J Clarke
- School of Chemistry, The University of Nottingham, University Park, Nottingham, NG7 2RD, UK
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9
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Wu F, Xu C, Margulis CJ. Dynamics of an excess hole in the 1-methyl-1-butyl-pyrrolidinium dicyanamide ionic-liquid. J Chem Phys 2018; 148:193831. [DOI: 10.1063/1.5009940] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Fei Wu
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242, USA
| | - Changhui Xu
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242, USA
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10
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Buckley M, Syres KL, Jones RG. Interactions and stabilisation of acetone, sulfur dioxide and water with 1-octyl-3-methylimidazolium tetrafluoroborate [OMIM][BF 4] at low temperatures. Faraday Discuss 2018; 206:475-495. [PMID: 28929162 DOI: 10.1039/c7fd00146k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interactions between three small molecules, water (H2O), sulfur dioxide (SO2) and acetone ((CH3)2CO), with the ionic liquid (IL) 1-octyl-3-methylimidazolium tetrafluoroborate, [OMIM][BF4], have been determined using line of sight temperature programmed desorption (LOSTPD) from a gold surface. Multilayers of the IL were deposited by physical vapour deposition with multilayers of the small molecular species (adsorbed from the gas phase) at 90 K. LOSTPD was then carried out with the small molecular species desorbing first from the mixed multilayer, followed at higher temperatures by desorption of the IL from the gold surface. The IL had a high activation energy for desorption of 126(6) kJ mol-1. Pure acetone showed a desorption activation energy of 38(2) kJ mol-1, which increased to 45-61 kJ mol-1 when it was pre-adsorbed below an overlying porous layer of the ionic liquid at 90 K. The stabilised acetone is thought to be associated with pores containing ionic moieties. Destabilised acetone was also observed and thought to originate from pores containing octyl chains. The quantity of stabilised acetone scaled with the amount of IL, being ≈1.1 molecules per IL ion pair. SO2 and H2O were co-adsorbed with the IL at 90 K leading to an intimate mixture of the two. For pure SO2 the desorption energy was 32(2) kJ mol-1, which increased to 40-52 kJ mol-1 for relative concentrations up to 6 SO2 molecules per IL ion pair. For pure water the activation energies were 49(5) kJ mol-1 and 43(1) kJ mol-1 for amorphous and crystalline ice respectively. When co-adsorbed with the IL the stabilisation energies were 42-49 kJ mol-1, but up to 505 water molecules per IL ion pair could be stabilised to some degree. The desorption mechanisms and the reasons for these interactions are discussed.
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Affiliation(s)
- Matthew Buckley
- Department of Physical Chemistry, School of Chemistry, University of Nottingham, Nottingham NG7 2RD, UK.
| | - Karen L Syres
- Department of Physical Chemistry, School of Chemistry, University of Nottingham, Nottingham NG7 2RD, UK.
| | - Robert G Jones
- Department of Physical Chemistry, School of Chemistry, University of Nottingham, Nottingham NG7 2RD, UK.
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11
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Lovelock KRJ. Quantifying intermolecular interactions of ionic liquids using cohesive energy densities. ROYAL SOCIETY OPEN SCIENCE 2017; 4:171223. [PMID: 29308254 PMCID: PMC5750021 DOI: 10.1098/rsos.171223] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 10/30/2017] [Indexed: 05/25/2023]
Abstract
For ionic liquids (ILs), both the large number of possible cation + anion combinations and their ionic nature provide a unique challenge for understanding intermolecular interactions. Cohesive energy density, ced, is used to quantify the strength of intermolecular interactions for molecular liquids, and is determined using the enthalpy of vaporization. A critical analysis of the experimental challenges and data to obtain ced for ILs is provided. For ILs there are two methods to judge the strength of intermolecular interactions, due to the presence of multiple constituents in the vapour phase of ILs. Firstly, cedIP, where the ionic vapour constituent is neutral ion pairs, the major constituent of the IL vapour. Secondly, cedC+A, where the ionic vapour constituents are isolated ions. A cedIP dataset is presented for 64 ILs. For the first time an experimental cedC+A, a measure of the strength of the total intermolecular interaction for an IL, is presented. cedC+A is significantly larger for ILs than ced for most molecular liquids, reflecting the need to break all of the relatively strong electrostatic interactions present in ILs. However, the van der Waals interactions contribute significantly to IL volatility due to the very strong electrostatic interaction in the neutral ion pair ionic vapour. An excellent linear correlation is found between cedIP and the inverse of the molecular volume. A good linear correlation is found between IL cedIP and IL Gordon parameter (which are dependent primarily on surface tension). ced values obtained through indirect methods gave similar magnitude values to cedIP. These findings show that cedIP is very important for understanding IL intermolecular interactions, in spite of cedIP not being a measure of the total intermolecular interactions of an IL. In the outlook section, remaining challenges for understanding IL intermolecular interactions are outlined.
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12
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Hekayati J, Roosta A, Javanmardi J. On the prediction of the vapor pressure of ionic liquids based on the principle of corresponding states. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.11.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Abdelhamid HN. Ionic liquids for mass spectrometry: Matrices, separation and microextraction. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.12.007] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Pyschik M, Schultz C, Passerini S, Winter M, Nowak S. Aging of Cations of Ionic Liquids Monitored by Ion Chromatography hyphenated to an Electrospray Ionization Mass Spectrometer. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.07.168] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Rocha MAA, Coutinho JAP, Santos LMNBF. Vapor pressures of 1,3-dialkylimidazolium bis(trifluoromethylsulfonyl)imide ionic liquids with long alkyl chains. J Chem Phys 2015; 141:134502. [PMID: 25296816 DOI: 10.1063/1.4896704] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
This work presents the vapor pressure at several temperatures for the 1,3-dialkylimidazolium bis(trifluoromethylsulfonyl)imide series, [CN/2CN/2im][NTf2] (N = 14, 16, 18, and 20), measured by a Knudsen effusion method combined with a quartz crystal microbalance. The thermodynamic properties of vaporization of the ionic liquids under study are analysed together with the results obtained previously for the shorter alkyl chain length [CN/2CN/2im][NTf2] (N = 2, 4, 6, 8, 10, and 12), in order to evaluate the effect of the alkyl side chains of the cation and to get additional insights concerning the nanostructuration of ionic liquids. The symmetry effect is explored, based on the comparison with the asymmetric imidazolium based ionic liquids, [CN-1C1im][NTf2]. A trend shift on the thermodynamic properties of vaporization along the alkyl side chains of the extended symmetric ionic liquids, around [C6C6im][NTf2], was detected. An intensification of the odd-even effect was observed starting from [C6C6im][NTf2], with higher enthalpies and entropies of vaporization for the odd numbered ionic liquids, [C7C7im][NTf2] and [C9C9im][NTf2]. Similar, but less pronounced, odd-even effect was found for the symmetric ionic liquids with lower alkyl side chains length, [CN/2CN/2im][NTf2] (with N = 4, 6, 8, 10, and 12). This effect is related with the predominant orientation of the terminal methyl group of the alkyl chain to the imidazolium ring and their influence in the cation-anion interaction. The same Critical Alkyl length at the hexyl, (C6C1and C6C6) was found for both asymmetric and symmetric series indicating that the nanostructuration of the ionic liquids is related with alkyl chain length.
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Affiliation(s)
- Marisa A A Rocha
- Centro de Investigação em Química, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, P-4169-007 Porto, Portugal
| | - João A P Coutinho
- CICECO, Departamento de Química, Universidade de Aveiro, P-3810-193 Aveiro, Portugal
| | - Luís M N B F Santos
- Centro de Investigação em Química, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, P-4169-007 Porto, Portugal
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16
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Chaban VV, Voroshylova IV. Systematic refinement of Canongia Lopes-Pádua force field for pyrrolidinium-based ionic liquids. J Phys Chem B 2015; 119:6242-9. [PMID: 25826190 DOI: 10.1021/jp5122678] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Reliable force field (FF) is a central issue in successful prediction of physical chemical properties via computer simulations. While Canongia Lopes-Pádua (CL&P) FF provides good to excellent thermodynamics and structure of pure room-temperature ionic liquids (RTILs), it suffers from drastically and systematically underestimated ionic motion. This occurs due to neglected partial electron transfer from the anion to the cation, resulting in unphysically small simulated self-diffusion and conductivity and high shear viscosities. We report a systematic refinement of the CL&P FF for six pyrrolidinium-based RTILs (1-N-butyl-1-methylpyrrolidinium dicyanamide, triflate, bis(fluorosulfonyl)imide, bis(trifluoromethanesulfonyl)imide, tetrafluoroborate, chloride). The elaborated procedure accounts for specific cation-anion interactions in the liquid phase. Once these interactions are described effectively, experimentally determined transport properties can be reproduced with an acceptable accuracy. Together with the original CL&P parameters, our force field fosters computational investigation of ionic liquids. In addition, the reported results shed more light on the chemical nature of cation-anion binding in various families of RTILs.
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Affiliation(s)
- Vitaly V Chaban
- †Instituto de Ciência e Tecnologia, Universidade Federal de São Paulo, 12247-014 São José dos Campos, SP, Brazil
| | - Iuliia V Voroshylova
- ‡CIQ/REQUIMTE - Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal
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17
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Hessey SG, Jones RG. Line‐of‐sight mass spectrometry: principles and practice. SURF INTERFACE ANAL 2015. [DOI: 10.1002/sia.5749] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Stephen G. Hessey
- Department of Physical Chemistry, School of ChemistryUniversity of Nottingham University Park Nottingham NG9 7AL UK
| | - Robert G. Jones
- Department of Physical Chemistry, School of ChemistryUniversity of Nottingham University Park Nottingham NG9 7AL UK
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18
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Xu C, Margulis CJ. Solvation of an Excess Electron in Pyrrolidinium Dicyanamide Based Ionic Liquids. J Phys Chem B 2015; 119:532-42. [DOI: 10.1021/jp5108922] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Changhui Xu
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
| | - Claudio J. Margulis
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
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19
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Vilas M, Rocha MAA, Fernandes AM, Tojo E, Santos LMNBF. Novel 2-alkyl-1-ethylpyridinium ionic liquids: synthesis, dissociation energies and volatility. Phys Chem Chem Phys 2015; 17:2560-72. [DOI: 10.1039/c4cp05191b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Overlapping of the electrostatic and van der Waals functional interaction potentials.
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Affiliation(s)
- Miguel Vilas
- Department of Organic Chemistry
- University of Vigo
- Faculty of Chemistry
- Vigo
- Spain
| | - Marisa A. A. Rocha
- CIQ
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- Porto
- Portugal
| | - Ana M. Fernandes
- QOPNA Unit
- Departamento de Química
- Universidade de Aveiro
- 3810-193 Aveiro
- Portugal
| | - Emilia Tojo
- Department of Organic Chemistry
- University of Vigo
- Faculty of Chemistry
- Vigo
- Spain
| | - Luís M. N. B. F. Santos
- CIQ
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- Porto
- Portugal
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20
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Wei J, Bu X, Guan W, Xing N, Fang D, Wu Y. Measurement of vaporization enthalpy by isothermogravimetrical method and prediction of the polarity for 1-alkyl-3-methylimidazolium acetate {[Cnmim][OAc] (n = 4, 6)} ionic liquids. RSC Adv 2015. [DOI: 10.1039/c5ra12626f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The ΔglH°m for [Cnmim][OAc] (n = 4, 6) were measured using isothermogravimetrical approach and explored by molecular dynamics simulations. The δμ can be estimated easily, and good agreement with experiences.
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Affiliation(s)
- Jie Wei
- College of Chemistry
- Liaoning University
- Shenyang 110036
- P. R. China
| | - Xiaoxue Bu
- College of Chemistry
- Liaoning University
- Shenyang 110036
- P. R. China
| | - Wei Guan
- College of Chemistry
- Liaoning University
- Shenyang 110036
- P. R. China
| | - Nannan Xing
- College of Chemistry
- Liaoning University
- Shenyang 110036
- P. R. China
| | - Dawei Fang
- College of Chemistry
- Liaoning University
- Shenyang 110036
- P. R. China
| | - Yang Wu
- College of Chemistry
- Liaoning University
- Shenyang 110036
- P. R. China
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21
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Chambreau SD, Schenk AC, Sheppard AJ, Yandek GR, Vaghjiani GL, Maciejewski J, Koh CJ, Golan A, Leone SR. Thermal Decomposition Mechanisms of Alkylimidazolium Ionic Liquids with Cyano-Functionalized Anions. J Phys Chem A 2014; 118:11119-32. [DOI: 10.1021/jp5095855] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Steven D. Chambreau
- ERC,
Inc., and ‡Propellants Branch, Aerospace Systems Directorate, Air Force Research Laboratory, AFRL/RQRP, Edwards Air Force Base, California 93524, United States
| | | | | | | | | | - John Maciejewski
- Department
of Chemistry, University of Idaho, Moscow, Idaho 83844, United States
| | - Christine J. Koh
- Departments
of Chemistry and Physics, University of California, Berkeley, California 94720, United States
| | - Amir Golan
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Stephen R. Leone
- Departments
of Chemistry and Physics, University of California, Berkeley, California 94720, United States
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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22
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Tong J, Yang HX, Liu RJ, Li C, Xia LX, Yang JZ. Determination of the Enthalpy of Vaporization and Prediction of Surface Tension for Ionic Liquid 1-Alkyl-3-methylimidazolium Propionate [Cnmim][Pro](n = 4, 5, 6). J Phys Chem B 2014; 118:12972-8. [DOI: 10.1021/jp509240w] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jing Tong
- College
of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
| | - Hong-Xu Yang
- College
of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
| | - Ru-Jing Liu
- College
of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
| | - Chi Li
- College
of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
| | - Li-Xin Xia
- College
of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
| | - Jia-Zhen Yang
- College
of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
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23
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Zaitsau DH, Yermalayeu AV, Emel'yanenko VN, Heintz A, Verevkin SP, Schick C, Berdzinski S, Strehmel V. Structure–property relationships in ILs: Vaporization enthalpies of pyrrolidinium based ionic liquids. J Mol Liq 2014. [DOI: 10.1016/j.molliq.2013.07.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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24
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Beichel W, Preiss UP, Verevkin SP, Koslowski T, Krossing I. Empirical description and prediction of ionic liquids' properties with augmented volume-based thermodynamics. J Mol Liq 2014. [DOI: 10.1016/j.molliq.2013.07.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Lovelock KRJ, Armstrong JP, Licence P, Jones RG. Vaporisation and thermal decomposition of dialkylimidazolium halide ion ionic liquids. Phys Chem Chem Phys 2014; 16:1339-53. [DOI: 10.1039/c3cp52950a] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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26
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Paduszyński K, Okuniewski M, Domańska U. Renewable Feedstocks in Green Solvents: Thermodynamic Study on Phase Diagrams of d-Sorbitol and Xylitol with Dicyanamide Based Ionic Liquids. J Phys Chem B 2013; 117:7034-46. [DOI: 10.1021/jp401937p] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Kamil Paduszyński
- Department of Physical
Chemistry, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664
Warsaw, Poland
| | - Marcin Okuniewski
- Department of Physical
Chemistry, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664
Warsaw, Poland
| | - Urszula Domańska
- Department of Physical
Chemistry, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664
Warsaw, Poland
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27
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Verevkin SP, Zaitsau DH, Emel’yanenko VN, Yermalayeu AV, Schick C, Liu H, Maginn EJ, Bulut S, Krossing I, Kalb R. Making Sense of Enthalpy of Vaporization Trends for Ionic Liquids: New Experimental and Simulation Data Show a Simple Linear Relationship and Help Reconcile Previous Data. J Phys Chem B 2013; 117:6473-86. [DOI: 10.1021/jp311429r] [Citation(s) in RCA: 144] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sergey P. Verevkin
- Department
of Physical Chemistry, University of Rostock, Dr.-Lorenz-Weg 1, 18059 Rostock, Germany
| | - Dzmitry H. Zaitsau
- Department
of Physical Chemistry, University of Rostock, Dr.-Lorenz-Weg 1, 18059 Rostock, Germany
| | - Vladimir N. Emel’yanenko
- Department
of Physical Chemistry, University of Rostock, Dr.-Lorenz-Weg 1, 18059 Rostock, Germany
| | - Andrei V. Yermalayeu
- Department
of Physical Chemistry, University of Rostock, Dr.-Lorenz-Weg 1, 18059 Rostock, Germany
| | - Christoph Schick
- Department
of Physics, University of Rostock, Rostock,
Wissmarsche Strasse 43-45, 18057 Rostock Germany
| | - Hongjun Liu
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556,
United States
| | - Edward J. Maginn
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556,
United States
| | - Safak Bulut
- Institut für Anorganische
und Analytische Chemie, Universität Freiburg, Albertstrasse 21, 79104
Freiburg, Germany
| | - Ingo Krossing
- Institut für Anorganische
und Analytische Chemie, Universität Freiburg, Albertstrasse 21, 79104
Freiburg, Germany
| | - Roland Kalb
- Proionic GmbH, Parkring
18, Trakt H/1, A-8074 Grambach bei Graz, Austria
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28
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Papari M, Amighi S, Kiani M, Mohammad-Aghaie D, Haghighi B. Modification of a statistical mechanically-based equation of state: Application to ionic liquids. J Mol Liq 2012. [DOI: 10.1016/j.molliq.2012.08.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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29
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Verevkin SP, Emel’yanenko VN, Zaitsau DH, Ralys RV, Schick C. Ionic Liquids: Differential Scanning Calorimetry as a New Indirect Method for Determination of Vaporization Enthalpies. J Phys Chem B 2012; 116:4276-85. [DOI: 10.1021/jp300834g] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sergey P. Verevkin
- Department
of Physical Chemistry, University of Rostock, Dr-Lorenz-Weg. 1, 18059 Rostock, Germany
| | - Vladimir N. Emel’yanenko
- Department
of Physical Chemistry, University of Rostock, Dr-Lorenz-Weg. 1, 18059 Rostock, Germany
| | - Dzmitry H. Zaitsau
- Department
of Physical Chemistry, University of Rostock, Dr-Lorenz-Weg. 1, 18059 Rostock, Germany
| | - Ricardas V. Ralys
- Department
of Physical Chemistry, University of Rostock, Dr-Lorenz-Weg. 1, 18059 Rostock, Germany
| | - Christoph Schick
- Department of Physics, University of Rostock, Wissmarsche Str. 43-45, 18057 Rostock, Germany
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30
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Diallo AO, Fayet G, Len C, Marlair G. Evaluation of Heats of Combustion of Ionic Liquids through Use of Existing and Purpose-Built Models. Ind Eng Chem Res 2012. [DOI: 10.1021/ie2023788] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Alpha-Oumar Diallo
- Institut National de l’Environnement
Industriel et des Risques, Verneuil-en-Halatte, France
- UTC/ESCOM, 1 allée du
Réseau Jean-Marie Buckmaster, F-60200 Compiègne, France
| | - Guillaume Fayet
- Institut National de l’Environnement
Industriel et des Risques, Verneuil-en-Halatte, France
| | - Christophe Len
- UTC/ESCOM, 1 allée du
Réseau Jean-Marie Buckmaster, F-60200 Compiègne, France
| | - Guy Marlair
- Institut National de l’Environnement
Industriel et des Risques, Verneuil-en-Halatte, France
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31
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Zaitsau DH, Fumino K, Emel'yanenko VN, Yermalayeu AV, Ludwig R, Verevkin SP. Structure-Property Relationships in Ionic Liquids: A Study of the Anion Dependence in Vaporization Enthalpies of Imidazolium-Based Ionic Liquids. Chemphyschem 2012; 13:1868-76. [DOI: 10.1002/cphc.201100879] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Revised: 12/02/2011] [Indexed: 11/08/2022]
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32
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Men S, Hurisso BB, Lovelock KRJ, Licence P. Does the influence of substituents impact upon the surface composition of pyrrolidinium-based ionic liquids? An angle resolved XPS study. Phys Chem Chem Phys 2012; 14:5229-38. [DOI: 10.1039/c2cp40262a] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Vitorino J, Bernardes CES, Minas da Piedade ME. A general strategy for the experimental study of the thermochemistry of protic ionic liquids: enthalpy of formation and vaporisation of 1-methylimidazolium ethanoate. Phys Chem Chem Phys 2012; 14:4440-6. [DOI: 10.1039/c2cp40213k] [Citation(s) in RCA: 19] [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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34
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Li J, Wei W, Nye LC, Schulz PS, Wasserscheid P, Ivanović-Burmazović I, Drewello T. Zwitterionic clusters with dianion core produced by electrospray ionisation of Brønsted acidic ionic liquids. Phys Chem Chem Phys 2012; 14:5115-21. [DOI: 10.1039/c2cp24071h] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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35
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Zaitsau DH, Verevkin SP, Emel'yanenko VN, Heintz A. Vaporization Enthalpies of Imidazolium Based Ionic Liquids: Dependence on Alkyl Chain Length. Chemphyschem 2011; 12:3609-13. [DOI: 10.1002/cphc.201100618] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Revised: 09/06/2011] [Indexed: 11/09/2022]
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36
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Verevkin SP, Zaitsau DH, Emel̀yanenko VN, Heintz A. A New Method for the Determination of Vaporization Enthalpies of Ionic Liquids at Low Temperatures. J Phys Chem B 2011; 115:12889-95. [DOI: 10.1021/jp207397v] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sergey P. Verevkin
- Department of Physical Chemistry, University of Rostock, Dr-Lorenz-Weg 1, D-18059, Rostock, Germany
| | - Dzmitry H. Zaitsau
- Department of Physical Chemistry, University of Rostock, Dr-Lorenz-Weg 1, D-18059, Rostock, Germany
| | - Vladimir N. Emel̀yanenko
- Department of Physical Chemistry, University of Rostock, Dr-Lorenz-Weg 1, D-18059, Rostock, Germany
| | - Andreas Heintz
- Department of Physical Chemistry, University of Rostock, Dr-Lorenz-Weg 1, D-18059, Rostock, Germany
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37
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Umebayashi Y, Hamano H, Seki S, Minofar B, Fujii K, Hayamizu K, Tsuzuki S, Kameda Y, Kohara S, Watanabe M. Liquid Structure of and Li+ Ion Solvation in Bis(trifluoromethanesulfonyl)amide Based Ionic Liquids Composed of 1-Ethyl-3-methylimidazolium and N-Methyl-N-propylpyrrolidinium Cations. J Phys Chem B 2011; 115:12179-91. [DOI: 10.1021/jp2072827] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yasuhiro Umebayashi
- Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Hiroshi Hamano
- Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Shiro Seki
- Materials Science Research Laboratory, Central Research Institute of Electric Power Industry (CRIEPI), 2-11-1, Iwado-kita, Komae, Tokyo 201-8511, Japan
| | - Babak Minofar
- Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Kenta Fujii
- Neutron Scattering Laboratory, Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Kikuko Hayamizu
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Center, Tsukuba, Ibaraki, 305-8565, Japan
| | - Seiji Tsuzuki
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Center, Tsukuba, Ibaraki, 305-8565, Japan
| | - Yasuo Kameda
- Department of Material and Biological Chemistry, Faculty of Science, Yamagata University, 1-4-12 Kojirakawa-machi, Yamagata 990-8560, Japan
| | - Shinji Kohara
- Japan Synchrotron Radiation Research Institute (JASRI), Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Masayoshi Watanabe
- Department of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai Hodogaya-ku, Yokohama 240-8501, Japan
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38
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Emel’yanenko VN, Zaitsau DH, Verevkin SP, Heintz A, Voß K, Schulz A. Vaporization and Formation Enthalpies of 1-Alkyl-3-methylimidazolium Tricyanomethanides. J Phys Chem B 2011; 115:11712-7. [DOI: 10.1021/jp207335m] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vladimir N. Emel’yanenko
- Department of Physical Chemistry, University of Rostock, Dr-Lorenz-Weg-1, 18059 Rostock, Germany
| | - Dzmitry H. Zaitsau
- Department of Physical Chemistry, University of Rostock, Dr-Lorenz-Weg-1, 18059 Rostock, Germany
| | - Sergey P. Verevkin
- Department of Physical Chemistry, University of Rostock, Dr-Lorenz-Weg-1, 18059 Rostock, Germany
| | - Andreas Heintz
- Department of Physical Chemistry, University of Rostock, Dr-Lorenz-Weg-1, 18059 Rostock, Germany
| | - Karsten Voß
- Department of Inorganic Chemistry, University of Rostock, Albert-Einstein Str. 3a, 18059 Rostock, Germany
| | - Axel Schulz
- Department of Inorganic Chemistry, University of Rostock, Albert-Einstein Str. 3a, 18059 Rostock, Germany
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39
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Preiss U, Verevkin SP, Koslowski T, Krossing I. Going Full Circle: Phase‐Transition Thermodynamics of Ionic Liquids. Chemistry 2011; 17:6508-17. [DOI: 10.1002/chem.201003150] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Indexed: 11/07/2022]
Affiliation(s)
- Ulrich Preiss
- Freiburger Materialforschungszentrum, Universität Freiburg, Stefan‐Meier‐Str. 21, 79104 Freiburg (Germany), Fax:(+49) 761‐203‐6001
| | - Sergey P. Verevkin
- Abteilung Physikalische Chemie, Universität Rostock, Dr.‐Lorenz‐Weg 1, 18059 Rostock (Germany)
| | - Thorsten Koslowski
- Institut für Physikalische Chemie, Universität Freiburg, Albertstr. 23a, 79104 Freiburg (Germany)
| | - Ingo Krossing
- Freiburger Materialforschungszentrum, Universität Freiburg, Stefan‐Meier‐Str. 21, 79104 Freiburg (Germany), Fax:(+49) 761‐203‐6001
- Institut für Anorganische und Analytische Chemie and Fellow of the Freiburg Institute for Advanced Studies (FRIAS), Universität Freiburg, Albertstr. 21, 79104 Freiburg (Germany)
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40
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Chambreau SD, Boatz JA, Vaghjiani GL, Friedman JF, Eyet N, Viggiano AA. Reactions of Ions with Ionic Liquid Vapors by Selected-Ion Flow Tube Mass Spectrometry. J Phys Chem Lett 2011; 2:874-879. [PMID: 26295621 DOI: 10.1021/jz200212j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Room-temperature ionic liquids exert vanishingly small vapor pressures under ambient conditions. Under reduced pressure, certain ionic liquids have demonstrated volatility, and they are thought to vaporize as intact cation-anion ion pairs. However, ion pair vapors are difficult to detect because their concentration is extremely low under these conditions. In this Letter, we report the products of reacting ions such as NO(+), NH4(+), NO3(-), and O2(-) with vaporized aprotic ionic liquids in their intact ion pair form. Ion pair fragmentation to the cation or anion as well as ion exchange and ion addition processes are observed by selected-ion flow tube mass spectrometry. Free energies of the reactions involving 1-ethyl-3-methylimidazolium bis-trifluoromethylsulfonylimide determined by ab initio quantum mechanical calculations indicate that ion exchange or ion addition are energetically more favorable than charge-transfer processes, whereas charge-transfer processes can be important in reactions involving 1-butyl-3-methylimidazolium dicyanamide.
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Affiliation(s)
| | | | | | - Jeffrey F Friedman
- §Air Force Research Laboratory, AFRL/RVBXT Space Vehicles Directorate, Hanscom Air Force Base, Massachusetts 01731, United States
- ⊥Department of Physics, University of Puerto Rico, Mayaguez, Puerto Rico 00681-9016
- #Institute for Scientific Research, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Nicole Eyet
- §Air Force Research Laboratory, AFRL/RVBXT Space Vehicles Directorate, Hanscom Air Force Base, Massachusetts 01731, United States
- #Institute for Scientific Research, Boston College, Chestnut Hill, Massachusetts 02467, United States
- ¶Department of Chemistry, St. Anselm College, 100 Saint Anselm Drive, Manchester, New Hampshire 03102, United States
| | - A A Viggiano
- §Air Force Research Laboratory, AFRL/RVBXT Space Vehicles Directorate, Hanscom Air Force Base, Massachusetts 01731, United States
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41
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Taylor AW, Lovelock KRJ, Jones RG, Licence P. Borane-substituted imidazol-2-ylidenes: syntheses in vacuo. Dalton Trans 2011; 40:1463-70. [DOI: 10.1039/c0dt01240h] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Men S, Lovelock KRJ, Licence P. X-ray photoelectron spectroscopy of pyrrolidinium-based ionic liquids: cation–anion interactions and a comparison to imidazolium-based analogues. Phys Chem Chem Phys 2011; 13:15244-55. [DOI: 10.1039/c1cp21053j] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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43
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Deyko A, Lovelock KRJ, Licence P, Jones RG. The vapour of imidazolium-based ionic liquids: a mass spectrometry study. Phys Chem Chem Phys 2011; 13:16841-50. [DOI: 10.1039/c1cp21821b] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Chambreau SD, Vaghjiani GL, To A, Koh C, Strasser D, Kostko O, Leone SR. Heats of Vaporization of Room Temperature Ionic Liquids by Tunable Vacuum Ultraviolet Photoionization. J Phys Chem B 2010; 114:1361-7. [DOI: 10.1021/jp909423m] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Steven D. Chambreau
- ERC, Incorporated, Edwards Air Force Base, California 93524, Air Force Research Laboratory, Edwards Air Force Base, California 93524, Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, Departments of Chemistry and Physics and Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720
| | - Ghanshyam L. Vaghjiani
- ERC, Incorporated, Edwards Air Force Base, California 93524, Air Force Research Laboratory, Edwards Air Force Base, California 93524, Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, Departments of Chemistry and Physics and Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720
| | - Albert To
- ERC, Incorporated, Edwards Air Force Base, California 93524, Air Force Research Laboratory, Edwards Air Force Base, California 93524, Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, Departments of Chemistry and Physics and Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720
| | - Christine Koh
- ERC, Incorporated, Edwards Air Force Base, California 93524, Air Force Research Laboratory, Edwards Air Force Base, California 93524, Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, Departments of Chemistry and Physics and Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720
| | - Daniel Strasser
- ERC, Incorporated, Edwards Air Force Base, California 93524, Air Force Research Laboratory, Edwards Air Force Base, California 93524, Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, Departments of Chemistry and Physics and Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720
| | - Oleg Kostko
- ERC, Incorporated, Edwards Air Force Base, California 93524, Air Force Research Laboratory, Edwards Air Force Base, California 93524, Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, Departments of Chemistry and Physics and Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720
| | - Stephen R. Leone
- ERC, Incorporated, Edwards Air Force Base, California 93524, Air Force Research Laboratory, Edwards Air Force Base, California 93524, Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, Departments of Chemistry and Physics and Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720
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45
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Taylor AW, Lovelock KRJ, Deyko A, Licence P, Jones RG. High vacuum distillation of ionic liquids and separation of ionic liquid mixtures. Phys Chem Chem Phys 2010; 12:1772-83. [DOI: 10.1039/b920931j] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Verevkin SP, Emel’yanenko VN, Zaitsau DH, Heintz A, Muzny CD, Frenkel M. Thermochemistry of imidazolium-based ionic liquids: experiment and first-principles calculations. Phys Chem Chem Phys 2010; 12:14994-5000. [DOI: 10.1039/c0cp00747a] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Lovelock KRJ, Deyko A, Licence P, Jones RG. Vaporisation of an ionic liquid near room temperature. Phys Chem Chem Phys 2010; 12:8893-901. [DOI: 10.1039/c004197a] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Emel'yanenko VN, Verevkin SP, Heintz A, Voss K, Schulz A. Imidazolium-based ionic liquids. 1-methyl imidazolium nitrate: thermochemical measurements and ab initio calculations. J Phys Chem B 2009; 113:9871-6. [PMID: 19555083 DOI: 10.1021/jp901272k] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this work data of the molar enthalpies of formation of the ionic liquid 1-methylimidazolium nitrate [H-MIM][NO3] was measured by means of combustion calorimetry. The molar enthalpy of fusion of [H-MIM][NO3] was measured using DSC. Experiments to vaporize the ionic liquid into vacuum or nitrogen stream in order to obtain vaporization enthalpy have been performed. Ab initio calculations of the enthalpy of formation in the gaseous phase have been performed for the ionic species using the G3MP2 theory. The combination of traditional combustion calorimertry with modern high-level ab initio calculations allow the determination of the molar enthalpy of vaporization of the ionic liquid under study. The ab initio calculations indicate that [H-MIM][NO3] is most probably separated into the neutral species methyl-imidazole and HNO3 in the gaseous phase at conditions of the vaporization experiments.
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Affiliation(s)
- Vladimir N Emel'yanenko
- Department of Physical Chemistry, University of Rostock, Hermannstrasse 14, 18051 Rostock, Germany
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49
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Borodin O. Relation between Heat of Vaporization, Ion Transport, Molar Volume, and Cation−Anion Binding Energy for Ionic Liquids. J Phys Chem B 2009; 113:12353-7. [DOI: 10.1021/jp9070357] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Oleg Borodin
- Wasatch Molecular Inc., 2141 St. Marys Drive, Suite 102, Salt Lake City, Utah 84108, and Department of Materials Science & Engineering, 122 South Central Campus Drive, Room 304, University of Utah, Salt Lake City, Utah 84112-0560
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50
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Deyko A, Lovelock KRJ, Corfield JA, Taylor AW, Gooden PN, Villar-Garcia IJ, Licence P, Jones RG, Krasovskiy VG, Chernikova EA, Kustov LM. Measuring and predicting ΔvapH298 values of ionic liquids. Phys Chem Chem Phys 2009; 11:8544-55. [DOI: 10.1039/b908209c] [Citation(s) in RCA: 146] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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