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Impact of Dispersion Force Schemes on Liquid Systems: Comparing Efficiency and Drawbacks for Well-Targeted Test Cases. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27249034. [PMID: 36558168 PMCID: PMC9785970 DOI: 10.3390/molecules27249034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/07/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
First-principles molecular dynamics (FPMD) calculations were performed on liquid GeSe4 with the aim of inferring the impact of dispersion (van der Waals, vdW) forces on the structural properties. Different expressions for the dispersion forces were employed, allowing us to draw conclusions on their performances in a comparative fashion. These results supersede previous FPMD calculations obtained in smaller systems and shorter time trajectories by providing data of unprecedented accuracy. We obtained a substantial agreement with experiments for the structure factor regardless of the vdW scheme employed. This objective was achieved by using (in addition to FPMD with no dispersion forces) a selection of vdW schemes available within density functional theory. The first two are due to Grimme, D2 and D3, and the third one is devised within the so-called maximally localized Wannier functions approach (MLWF). D3 results feature a sizeable disagreement in real space with D2 and MLWF in terms of the partial and total pair correlation functions as well as the coordination numbers. More strikingly, total and partial structure factors calculated with D3 exhibit an unexpected sharp increase at low k. This peculiarity goes along with large void regions within the network, standing for a phase separation of indecipherable physical meaning. In view of these findings, further evidence of unconventional structural properties found by employing D3 is presented by relying on results obtained for a complex ionic liquid supported on a solid surface. The novelty of our study is multifold: new, reliable FPMD data for a prototypical disordered network system, convincing agreement with experimental data and assessment of the impact of dispersion forces, with emphasis on the intriguing behavior of one specific recipe and the discovery of common structural features shared by drastically dissimilar physical systems when the D3 vdW scheme is employed.
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2
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Biswas A, Mallik BS. 2D IR spectra of the intrinsic vibrational probes of ionic liquid from dispersion corrected DFT-MD simulations. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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3
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Biswas A, Mallik BS. Dynamics of Ionic Liquid through Intrinsic Vibrational Probes Using the Dispersion-Corrected DFT Functionals. J Phys Chem B 2021; 125:6994-7008. [PMID: 34142827 DOI: 10.1021/acs.jpcb.1c04960] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
First principles molecular dynamics simulations have been utilized to study the spectral properties of the protic ionic liquid, methylammonium formate (MAF). All simulations were performed using density functional theory (DFT) and various van der Waals-corrected exchange-correlation functionals. We calculated the vibrational stretch frequency distributions, determined the time-frequency correlations of the intrinsic vibrational probes, the N-H and C-O modes in MAF, and the frequency-structure correlations. We also estimated the average hydrogen-bond lifetimes and orientation dynamics to capture the ultrafast spectral response. The spectroscopic signature of the N-H stretching vibrations using the Becke-Lee-Yang-Parr (BLYP) and Perdew-Burke-Ernzerhof (PBE) functionals displays a spectral shift in the lower frequency side, suggesting stronger hydrogen-bonding interactions represented by the gradient approximation functionals than the van der Waals (vdW)-corrected simulations. The carboxylate frequency profiles with the dispersion-corrected representations are almost similar without a significant difference in the normalized distributions. Besides, the COO stretching frequencies at the peak maxima positions of the PBE functionals exhibit a lesser deviation from the experimental data. Spectral diffusion dynamics of the intrinsic vibrational probes on the cationic and anionic sites of the ionic liquid proceed through a short time relaxation of the intact hydrogen bonds followed by an intermediate time constant and a longer time decay indicating the switchover of hydrogen bonds. Dispersion-corrected atom-centered one-electron potential (DCACP) correction added to the BLYP system slows down the picosecond time scales of frequency correlation and the time constants of rotational motion, lengthening the overall system dynamics. The observed trends in the time-dependent decays of frequency fluctuations and the orientation autocorrelation functions correlate with the structural interactions in liquid MAF and hydrogen-bond dynamics. In this study, we examine the predictions made by different density functional treatments comparing the results of the uncorrected BLYP and PBE representations with the semiempirical vdW methods of Grimme and matching our calculated data with the experimental observations.
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Affiliation(s)
- Aritri Biswas
- Department of Chemistry, Indian Institute of Technology Hyderabad, Sangareddy 502285, Telangana, India
| | - Bhabani S Mallik
- Department of Chemistry, Indian Institute of Technology Hyderabad, Sangareddy 502285, Telangana, India
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4
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Biswas A, Dasari S, Mallik BS. Cohesiveness and Nondiffusive Rotational Jump Dynamics of Protic Ionic Liquid from Dispersion-Corrected FPMD Simulations. J Phys Chem B 2020; 124:10752-10765. [DOI: 10.1021/acs.jpcb.0c05866] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Aritri Biswas
- Department of Chemistry, Indian Institute of Technology Hyderabad, Sangareddy 502285, Telangana, India
| | - Sathish Dasari
- Department of Chemistry, Indian Institute of Technology Hyderabad, Sangareddy 502285, Telangana, India
| | - Bhabani S. Mallik
- Department of Chemistry, Indian Institute of Technology Hyderabad, Sangareddy 502285, Telangana, India
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5
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Mora Cardozo JF, Embs JP, Benedetto A, Ballone P. Equilibrium Structure, Hydrogen Bonding, and Proton Conductivity in Half-Neutralized Diamine Ionic Liquids. J Phys Chem B 2019; 123:5608-5625. [PMID: 30875220 DOI: 10.1021/acs.jpcb.9b00890] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Recent experiments on proton conducting ionic liquids point to half-neutralized diamine-triflate salts as promising candidates for applications in power generation and energy conversion electrochemical devices. Structural and dynamical properties of the simplest among these compounds are investigated by a combination of density functional theory (DFT) and molecular dynamics (MD) simulations based on an empirical force field. Three different cations have been considered, consisting of a pair of amine-ammonium terminations joined by a short aliphatic segment -(CH2) n- with n = 2, 3, and 4. First, the ground state structure, vibrational eigenstates, and hydrogen-bonding properties of single ions, neutral ion pairs, small neutral aggregates of up to eight ions, and molecularly thin hydrogen bonded wires have been investigated by DFT computations. Second, structural and dynamical properties of homogeneous liquid and amorphous phases are investigated by MD simulations over the temperature range of 200 ≤ T ≤ 440 K. Structure factors, radial distribution functions, diffusion coefficient, and electrical conductivity are computed and discussed, highlighting the inherent structural heterogeneity of these compounds. The core investigation, however, is the characterization of connected paths consisting of cation chains that could support proton transport via a Grotthuss-type mechanism. Since simulations are carried out using a force field of fixed bonding topology, this analysis is based on the equilibrium structure only, using geometrical criteria to identify potential paths for proton conduction. Paths of connected cations can reach a length of 80 cations and 30 Å, provided that bridging oxygen atoms from triflate anions are taken into account. The effects of water contamination at 1% weight concentration on the structure, dynamics, and paths for proton transport are discussed.
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Affiliation(s)
- Juan F Mora Cardozo
- Laboratory for Neutron Scattering and Imaging , Paul Scherrer Institute , Villigen PSI, Villigen 5232 , Switzerland
| | - J P Embs
- Laboratory for Neutron Scattering and Imaging , Paul Scherrer Institute , Villigen PSI, Villigen 5232 , Switzerland
| | - A Benedetto
- Laboratory for Neutron Scattering and Imaging , Paul Scherrer Institute , Villigen PSI, Villigen 5232 , Switzerland.,Department of Sciences , University of Roma Tre , Via della Vasca Navale 84 , 00146 Rome , Italy
| | - P Ballone
- Italian Institute of Technology , Via Morego 30 , 16163 Genova , Italy
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6
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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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7
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Peng H, Kubo M, Shiba H. Molecular dynamics study of mesophase transitions upon annealing of imidazolium-based ionic liquids with long-alkyl chains. Phys Chem Chem Phys 2018; 20:9796-9805. [PMID: 29620128 DOI: 10.1039/c8cp00698a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecular dynamics simulations are performed on a 1-dodecyl-3-methylimidazolium hexafluorophosphate ([C12mim][PF6]) ionic liquid using a united-atom model. The ionic liquid exhibits second step relaxation at temperatures below a crossover point, where the diffusion coefficient shows an Arrhenius to non-Arrhenius transition. Annealing below this crossover temperature makes an isotropic to mesophase transition, where the smectic A (SmA) phase or crystal-like smectic B (SmB) phase forms. Hundreds of nanoseconds are required for completing these transitions. A normal diffusion process is found for anions along the layer-normal and -lateral directions in the SmA phase, but only in the lateral directions in the SmB phase. We find a preserved orientational order for the imidazolium-ring rotational and the alkyl-chain reorientational dynamics in both of the smectic phases.
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Affiliation(s)
- Hailong Peng
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
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8
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Herrera C, Alcalde R, Atilhan M, Aparicio S. Microscopic characterization of mixtures of amino acid ionic liquids and organic solvents. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2017.11.131] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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9
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Willcox JAL, Kim H, Kim HJ. A molecular dynamics study of the ionic liquid, choline acetate. Phys Chem Chem Phys 2017; 18:14850-8. [PMID: 27188287 DOI: 10.1039/c6cp01031h] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Structural and dynamic properties of the ionic liquid (IL) choline acetate are studied using molecular dynamics (MD) simulations. The hydroxyl group of choline shows significant hydrogen-bonding interactions with the oxygen atoms of acetate. Nearly all choline cations are found to form a hydrogen bond with acetate anions at 400 K, while about 67% of cations participate in hydrogen-bonding interactions at 600 K. At 400 K, subdiffusive and prominent non-Gaussian behavior persist for t > 10 ns. At 600 K, the usual diffusion regime is obtained after a few hundred ps of subdiffusive behavior. Analysis of reorientational motions of acetate ions, particularly those of their short axes, indicates a high degree of dynamic heterogeneity, in agreement with previous work on different IL systems.
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Affiliation(s)
- Jon A L Willcox
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA 15213, USA.
| | - Hyunjin Kim
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA 15213, USA.
| | - Hyung J Kim
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA 15213, USA. and School of Computational Sciences, Korea Institute for Advanced Study, Seoul 02455, Korea
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10
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Kachmar A, Carignano M, Laino T, Iannuzzi M, Hutter J. Mapping the Free Energy of Lithium Solvation in the Protic Ionic Liquid Ethylammonuim Nitrate: A Metadynamics Study. CHEMSUSCHEM 2017; 10:3083-3090. [PMID: 28547888 DOI: 10.1002/cssc.201700510] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Revised: 05/23/2017] [Indexed: 06/07/2023]
Abstract
Understanding lithium solvation and transport in ionic liquids is important due to their possible application in electrochemical devices. Using first-principles simulations aided by a metadynamics approach we study the free-energy landscape for lithium ions at infinite dilution in ethylammonium nitrate, a protic ionic liquid. We analyze the local structure of the liquid around the lithium cation and obtain a quantitative picture in agreement with experimental findings. Our simulations show that the lowest two free energy minima correspond to conformations with the lithium ion being solvated either by three or four nitrate ions with a transition barrier between them of 0.2 eV. Other less probable conformations having different solvation pattern are also investigated.
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Affiliation(s)
- Ali Kachmar
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Marcelo Carignano
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Teodoro Laino
- Industry Solutions and Cognitive Computing, IBM Zurich Research Laboratory, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Marcella Iannuzzi
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Jürg Hutter
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
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11
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Daly CA, Berquist EJ, Brinzer T, Garrett-Roe S, Lambrecht DS, Corcelli SA. Modeling Carbon Dioxide Vibrational Frequencies in Ionic Liquids: II. Spectroscopic Map. J Phys Chem B 2016; 120:12633-12642. [DOI: 10.1021/acs.jpcb.6b09509] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Clyde A. Daly
- Department
of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46656, United States
| | - Eric J. Berquist
- Department
of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
- Pittsburgh
Quantum Institute, University of Pittsburgh, 3943 O’Hara Street, Pittsburgh, Pennsylvania 15260, United States
| | - Thomas Brinzer
- Department
of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
- Pittsburgh
Quantum Institute, University of Pittsburgh, 3943 O’Hara Street, Pittsburgh, Pennsylvania 15260, United States
| | - Sean Garrett-Roe
- Department
of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
- Pittsburgh
Quantum Institute, University of Pittsburgh, 3943 O’Hara Street, Pittsburgh, Pennsylvania 15260, United States
| | - Daniel S. Lambrecht
- Department
of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
- Pittsburgh
Quantum Institute, University of Pittsburgh, 3943 O’Hara Street, Pittsburgh, Pennsylvania 15260, United States
| | - Steven A. Corcelli
- Department
of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46656, United States
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12
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Ramírez-González PE, Sanchéz-Díaz LE, Medina-Noyola M, Wang Y. Communication: Probing the existence of partially arrested states in ionic liquids. J Chem Phys 2016; 145:191101. [DOI: 10.1063/1.4967518] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Pedro E. Ramírez-González
- CONACYT - Instituto de Física “Manuel Sandoval Vallarta,” Universidad Autónoma de San Luis Potosí, Álvaro Obregón 64, 78000 San Luis Potosí, SLP, Mexico
| | - Luis E. Sanchéz-Díaz
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - Magdaleno Medina-Noyola
- Instituto de Física “Manuel Sandoval Vallarta,” Universidad Autónoma de San Luis Potosí, Álvaro Obregón 64, 78000 San Luis Potosí, SLP, Mexico
| | - Yanting Wang
- State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, 55 East Zhongguancun Road, P.O. Box 2735, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China
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13
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Room Temperature Ionic Liquids as Green Solvent Alternatives in the Metathesis of Oleochemical Feedstocks. Molecules 2016; 21:molecules21020184. [PMID: 26861282 PMCID: PMC6273002 DOI: 10.3390/molecules21020184] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 01/25/2016] [Indexed: 11/25/2022] Open
Abstract
One of the most important areas of green chemistry is the application of environmentally friendly solvents in catalysis and synthesis. Conventional organic solvents pose a threat to the environment due to the volatility, highly flammability, toxicity and carcinogenic properties they exhibit. The recently emerged room temperature ionic liquids (RTILs) are promising green solvent alternatives to the volatile organic solvents due to their ease of reuse, non-volatility, thermal stability and ability to dissolve a variety of organic and organometallic compounds. This review explores the use of RTILs as green solvent media in olefin metathesis for applications in the oleochemical industry.
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14
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Bi L, Liang ZC. Short communication: Investigation on dynamics and self-diffusion coefficient of [BMIM][PF6] via molecular dynamics simulations. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2016. [DOI: 10.1134/s1990793115060226] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Herrera C, García G, Atilhan M, Aparicio S. A molecular dynamics study on aminoacid-based ionic liquids. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2015.10.056] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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16
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Haskins JB, Bauschlicher CW, Lawson JW. Ab Initio Simulations and Electronic Structure of Lithium-Doped Ionic Liquids: Structure, Transport, and Electrochemical Stability. J Phys Chem B 2015; 119:14705-19. [PMID: 26505208 DOI: 10.1021/acs.jpcb.5b06951] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Density functional theory (DFT), density functional theory molecular dynamics (DFT-MD), and classical molecular dynamics using polarizable force fields (PFF-MD) are employed to evaluate the influence of Li(+) on the structure, transport, and electrochemical stability of three potential ionic liquid electrolytes: N-methyl-N-butylpyrrolidinium bis(trifluoromethanesulfonyl)imide ([pyr14][TFSI]), N-methyl-N-propylpyrrolidinium bis(fluorosulfonyl)imide ([pyr13][FSI]), and 1-ethyl-3-methylimidazolium boron tetrafluoride ([EMIM][BF4]). We characterize the Li(+) solvation shell through DFT computations of [Li(Anion)n]((n-1)-) clusters, DFT-MD simulations of isolated Li(+) in small ionic liquid systems, and PFF-MD simulations with high Li-doping levels in large ionic liquid systems. At low levels of Li-salt doping, highly stable solvation shells having two to three anions are seen in both [pyr14][TFSI] and [pyr13][FSI], whereas solvation shells with four anions dominate in [EMIM][BF4]. At higher levels of doping, we find the formation of complex Li-network structures that increase the frequency of four anion-coordinated solvation shells. A comparison of computational and experimental Raman spectra for a wide range of [Li(Anion)n]((n-1)-) clusters shows that our proposed structures are consistent with experiment. We then compute the ion diffusion coefficients and find measures from small-cell DFT-MD simulations to be the correct order of magnitude, but influenced by small system size and short simulation length. Correcting for these errors with complementary PFF-MD simulations, we find DFT-MD measures to be in close agreement with experiment. Finally, we compute electrochemical windows from DFT computations on isolated ions, interacting cation/anion pairs, and liquid-phase systems with Li-doping. For the molecular-level computations, we generally find the difference between ionization energy and electron affinity from isolated ions and interacting cation/anion pairs to provide upper and lower bounds, respectively, to experiment. In the liquid phase, we find the difference between the lowest unoccupied and highest occupied electronic levels in pure and hybrid functionals to provide lower and upper bounds, respectively, to experiment. Li-doping in the liquid-phase systems results in electrochemical windows little changed from the neat systems.
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Affiliation(s)
- Justin B Haskins
- AMA Inc., Thermal Protection Materials Branch, Mail Stop 234-1, ‡Entry Systems and Technology Division, Mail Stop 230-3, and §Thermal Protection Materials Branch, Mail Stop 234-1, NASA Ames Research Center , Moffett Field, California 94035, United States
| | - Charles W Bauschlicher
- AMA Inc., Thermal Protection Materials Branch, Mail Stop 234-1, ‡Entry Systems and Technology Division, Mail Stop 230-3, and §Thermal Protection Materials Branch, Mail Stop 234-1, NASA Ames Research Center , Moffett Field, California 94035, United States
| | - John W Lawson
- AMA Inc., Thermal Protection Materials Branch, Mail Stop 234-1, ‡Entry Systems and Technology Division, Mail Stop 230-3, and §Thermal Protection Materials Branch, Mail Stop 234-1, NASA Ames Research Center , Moffett Field, California 94035, United States
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17
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García G, Atilhan M, Aparicio S. Theoretical Study of Renewable Ionic Liquids in the Pure State and with Graphene and Carbon Nanotubes. J Phys Chem B 2015; 119:12224-37. [DOI: 10.1021/acs.jpcb.5b03809] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gregorio García
- Department
of Chemistry, University of Burgos, 09001 Burgos, Spain
| | - Mert Atilhan
- Department
of Chemical Engineering, Qatar University, P.O. Box 2713, Doha, Qatar
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18
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Zhang Y, Otani A, Maginn EJ. Reliable Viscosity Calculation from Equilibrium Molecular Dynamics Simulations: A Time Decomposition Method. J Chem Theory Comput 2015; 11:3537-46. [DOI: 10.1021/acs.jctc.5b00351] [Citation(s) in RCA: 181] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yong Zhang
- Department of Chemical and
Biomolecular Engineering and the Joint Center for Energy Storage Research, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Akihito Otani
- Department of Chemical and
Biomolecular Engineering and the Joint Center for Energy Storage Research, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Edward J. Maginn
- Department of Chemical and
Biomolecular Engineering and the Joint Center for Energy Storage Research, University of Notre Dame, Notre Dame, Indiana 46556, United States
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Ori G, Massobrio C, Pradel A, Ribes M, Coasne B. Structure and Dynamics of Ionic Liquids Confined in Amorphous Porous Chalcogenides. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:6742-6751. [PMID: 26030830 DOI: 10.1021/acs.langmuir.5b00982] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Besides the abundant literature on ionic liquids in porous silica and carbon, the confinement of such intriguing liquids in porous chalcogenides has received very little attention. Here, molecular simulation is employed to study the structural and dynamical properties of a typical ionic liquid confined in a realistic molecular model of amorphous chalcogenide with various pore sizes and surface chemistries. Using molecular dynamics in the isobaric-isothermal (NPT) ensemble, we consider confinement conditions relevant to real samples. Both the structure and self-dynamics of the confined phase are found to depend on the surface-to-volume ratio of the host confining material. Consequently, most properties of the confined ionic liquid can be written as a linear combination of surface and bulk-like contributions, arising from the ions in contact with the surface and the ions in the pore center, respectively. On the other hand, collective dynamical properties such as the ionic conductivity remain close to their bulk counterpart and almost insensitive to pore size and surface chemistry. These results, which are in fair agreement with available experimental data, provide a basis for the development of novel applications using hybrid organic-inorganic solids consisting of ionic liquids confined in porous chalcogenides.
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Affiliation(s)
- Guido Ori
- †Institut Charles Gerhardt Montpellier, CNRS-UMR 5253, ENSCM, Université Montpellier, Place Eugène Bataillon 34095 Montpellier Cedex 5, France
- ‡Multiscale Materials Science for Energy and Environment 2, UMI 3466 CNRS-MIT, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- §Institut de Physique et de Chimie des Matériaux de Strasbourg, Université de Strasbourg and CNRS UMR 7504, 23 rue du Loess, F-67034 Strasbourg Cedex 2, France
| | - Carlo Massobrio
- §Institut de Physique et de Chimie des Matériaux de Strasbourg, Université de Strasbourg and CNRS UMR 7504, 23 rue du Loess, F-67034 Strasbourg Cedex 2, France
| | - Annie Pradel
- †Institut Charles Gerhardt Montpellier, CNRS-UMR 5253, ENSCM, Université Montpellier, Place Eugène Bataillon 34095 Montpellier Cedex 5, France
| | - Michel Ribes
- †Institut Charles Gerhardt Montpellier, CNRS-UMR 5253, ENSCM, Université Montpellier, Place Eugène Bataillon 34095 Montpellier Cedex 5, France
| | - Benoit Coasne
- †Institut Charles Gerhardt Montpellier, CNRS-UMR 5253, ENSCM, Université Montpellier, Place Eugène Bataillon 34095 Montpellier Cedex 5, France
- ‡Multiscale Materials Science for Energy and Environment 2, UMI 3466 CNRS-MIT, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- ⊥Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 United States
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Ludwig T, Guo L, McCrary P, Zhang Z, Gordon H, Quan H, Stanton M, Frazier RM, Rogers RD, Wang HT, Turner CH. Mechanism of bismuth telluride exfoliation in an ionic liquid solvent. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:3644-3652. [PMID: 25760309 DOI: 10.1021/acs.langmuir.5b00239] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Bismuth telluride (Bi2Te3) is a well-known thermoelectric material that has a layered crystal structure. Exfoliating Bi2Te3 to produce two-dimensional (2D) nanosheets is extremely important because the exfoliated nanosheets possess unique properties, which can potentially revolutionize several material technologies such as thermoelectrics, heterogeneous catalysts, and infrared detectors. In this work, ionic liquid (IL) 1-butyl-3-methylimidazolium chloride ([C4mim]Cl) is used to exfoliate Bi2Te3 nanoplatelets. In both experiments and in molecular dynamics (MD) simulations, the Bi2Te3 nanoplatelets yield a stable dispersion of 2D nanosheets in the IL solvent, and our MD simulations provide molecular-level insight into the kinetics and thermodynamics of the exfoliation process. An analysis of the dynamics of Bi2Te3 during exfoliation indicates that the relative translation (sliding apart) of adjacent layers caused by IL-induced forces plays an important role in the process. Moreover, an evaluation of the MD trajectories and electrostatic interactions indicates that the [C4mim](+) cation is primarily responsible for initiating Bi2Te3 layer sliding and separation, while the Cl(-) anion is less active. Overall, our combined experimental and computational investigation highlights the effectiveness of IL-assisted exfoliation, and the underlying molecular-level insights should accelerate the development of future exfoliation techniques for producing 2D chalcogenide materials.
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Affiliation(s)
| | | | | | | | - Haley Gordon
- ⊥Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
- #St. Mary's College, Notre Dame, Indiana 46556, United States
| | | | - Michael Stanton
- ∇Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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21
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Yamaguchi T, Nakahara E, Koda S. Quantitative Analysis of Conductivity and Viscosity of Ionic Liquids in Terms of Their Relaxation Times. J Phys Chem B 2014; 118:5752-9. [DOI: 10.1021/jp502631q] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tsuyoshi Yamaguchi
- Department of Molecular Design
and Engineering, Graduate School of Engineering, Nagoya University, Furo-cho,
Chikusa, Nagoya, Aichi 464-8603, Japan
| | - Eiichiro Nakahara
- Department of Molecular Design
and Engineering, Graduate School of Engineering, Nagoya University, Furo-cho,
Chikusa, Nagoya, Aichi 464-8603, Japan
| | - Shinobu Koda
- Department of Molecular Design
and Engineering, Graduate School of Engineering, Nagoya University, Furo-cho,
Chikusa, Nagoya, Aichi 464-8603, Japan
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22
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23
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Hu YL, Fang D, Xing R. Efficient and convenient oxidation of sulfides to sulfoxides with molecular oxygen catalyzed by Mn(OAc)2 in ionic liquid [C12mim][NO3]. RSC Adv 2014. [DOI: 10.1039/c4ra06695b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
A simple, efficient, and eco-friendly procedure for aerobic oxidation of sulfides catalyzed by Mn(OAc)2/[C12mim][NO3] has been developed.
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Affiliation(s)
- Yu-Lin Hu
- College of Chemistry and Chemical Engineering
- Yancheng Teachers University
- Yancheng 224002, P. R. China
| | - Dong Fang
- College of Chemistry and Chemical Engineering
- Yancheng Teachers University
- Yancheng 224002, P. R. China
| | - Rong Xing
- College of Chemistry and Chemical Engineering
- Yancheng Teachers University
- Yancheng 224002, P. R. China
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24
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Atilhan M, Jacquemin J, Rooney D, Khraisheh M, Aparicio S. Viscous Behavior of Imidazolium-Based Ionic Liquids. Ind Eng Chem Res 2013. [DOI: 10.1021/ie403065u] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Mert Atilhan
- Department
of Chemical Engineering, Qatar University, Doha 2173, Qatar
| | - Johan Jacquemin
- School
of Chemistry and Chemical Engineering, Queen’s University Belfast, Belfast, BT7 1NN, Northern Ireland, U.K
| | - David Rooney
- School
of Chemistry and Chemical Engineering, Queen’s University Belfast, Belfast, BT7 1NN, Northern Ireland, U.K
| | - Majeda Khraisheh
- Department
of Chemical Engineering, Qatar University, Doha 2173, Qatar
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25
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Cannes C, Le Naour C, Moisy P, Guilbaud P. Specific Interaction between Uranium Anionic Complexes and the Cations of Bis(trifluoromethylsulfonyl)imide Based Ionic Liquids. Inorg Chem 2013; 52:11218-27. [DOI: 10.1021/ic4014653] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Céline Cannes
- Institut
de Physique Nucléaire, CNRS, Univ. Paris-Sud 11, 91406 Orsay Cedex, France
| | - Claire Le Naour
- Institut
de Physique Nucléaire, CNRS, Univ. Paris-Sud 11, 91406 Orsay Cedex, France
| | - Philippe Moisy
- CEA, Nuclear Energy Division, Radiochemistry & Processes Department, 30207 Bagnols sur Cèze, France
| | - Philippe Guilbaud
- CEA, Nuclear Energy Division, Radiochemistry & Processes Department, 30207 Bagnols sur Cèze, France
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26
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Koller TM, Rausch MH, Ramos J, Schulz PS, Wasserscheid P, Economou IG, Fröba AP. Thermophysical Properties of the Ionic Liquids [EMIM][B(CN)4] and [HMIM][B(CN)4]. J Phys Chem B 2013; 117:8512-23. [DOI: 10.1021/jp400315h] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
| | | | - Javier Ramos
- BIOPHYM, Departamento de Física
Macromolecular, Instituto de Estructura de la Materia, CSIC, Serrano 113bis, 28006-Madrid, Spain
| | | | | | - Ioannis G. Economou
- Molecular Thermodynamics and
Modelling of Materials Laboratory, Institute of Advanced Materials,
Physicochemical Processes, Nanotechnology and Microsystems, National Centre for Scientific Research “Demokritos”, GR-153 10 Aghia Paraskevi Attikis, Greece
- Chemical Engineering Program, Texas A&M University at Qatar, Education City, P.O. Box 23874, Doha, Qatar
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