101
|
Kohanoff J, Pinilla C, Youngs TGA, Artacho E, Soler JM. Dispersion interactions in room-temperature ionic liquids: results from a non-empirical density functional. J Chem Phys 2012; 135:154505. [PMID: 22029322 DOI: 10.1063/1.3652897] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
The role of dispersion or van de Waals (VDW) interactions in imidazolium-based room-temperature ionic liquids is studied within the framework of density functional theory, using a recently developed non-empirical functional [M. Dion, H. Rydberg, E. Schröder, D. C. Langreth, and B. I. Lundqvist, Phys. Rev. Lett. 92, 246401 (2004)], as efficiently implemented in the SIESTA code [G. Román-Pérez and J. M. Soler, Phys. Rev. Lett. 103, 096102 (2009)]. We present results for the equilibrium structure and lattice parameters of several crystalline phases, finding a general improvement with respect to both the local density (LDA) and the generalized gradient approximations (GGA). Similar to other systems characterized by VDW bonding, such as rare gas and benzene dimers as well as solid argon, equilibrium distances and volumes are consistently overestimated by ≈7%, compared to -11% within LDA and 11% within GGA. The intramolecular geometries are retained, while the intermolecular distances and orientations are significantly improved relative to LDA and GGA. The quality is superior to that achieved with tailor-made empirical VDW corrections ad hoc [M. G. Del Pópolo, C. Pinilla, and P. Ballone, J. Chem. Phys. 126, 144705 (2007)]. We also analyse the performance of an optimized version of this non-empirical functional, where the screening properties of the exchange have been tuned to reproduce high-level quantum chemical calculations [J. Klimes, D. Bowler, and A. Michaelides, J. Phys.: Condens. Matter 22, 074203 (2010)]. The results for solids are even better with volumes and geometries reproduced within 2% of experimental data. We provide some insight into the issue of polymorphism of [bmim][Cl] crystals, and we present results for the geometry and energetics of [bmim][Tf] and [mmim][Cl] neutral and charged clusters, which validate the use of empirical force fields.
Collapse
Affiliation(s)
- Jorge Kohanoff
- Atomistic Simulation Centre, Queen's University Belfast, Belfast BT7 1NN, Northern IrelandSchool of Chemistry, University of Bristol, Bristol BS2 1TS, United Kingdom.
| | | | | | | | | |
Collapse
|
102
|
Zherenkova LV, Komarov PV, Belov AN, Pavlov AS. A polymer in an ionic liquid: Effect of the length of the cationic nonpolar tail on the character of interchain correlations. POLYMER SCIENCE SERIES A 2012. [DOI: 10.1134/s0965545x12020113] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
103
|
Tomé LIN, Jorge M, Gomes JRB, Coutinho JAP. Molecular Dynamics Simulation Studies of the Interactions between Ionic Liquids and Amino Acids in Aqueous Solution. J Phys Chem B 2012; 116:1831-42. [DOI: 10.1021/jp209625e] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Luciana I. N. Tomé
- CICECO, Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Miguel Jorge
- LSRE—Laboratory of Separation
and Reaction Engineering—Associate Laboratory LSRE/LCM, Faculdade
de Engenharia, Universidade do Porto, Rua
Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - José R. B. Gomes
- CICECO, Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - João A. P. Coutinho
- CICECO, Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| |
Collapse
|
104
|
Cheng J, Sprik M. Alignment of electronic energy levels at electrochemical interfaces. Phys Chem Chem Phys 2012; 14:11245-67. [DOI: 10.1039/c2cp41652b] [Citation(s) in RCA: 194] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
105
|
Yau HM, Croft AK, Harper JB. Investigating the origin of entropy-derived rate accelerations in ionic liquids. Faraday Discuss 2012; 154:365-71; discussion 439-64, 465-71. [DOI: 10.1039/c1fd00060h] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
106
|
Steinrück HP. Recent developments in the study of ionic liquid interfaces using X-ray photoelectron spectroscopy and potential future directions. Phys Chem Chem Phys 2012; 14:5010-29. [DOI: 10.1039/c2cp24087d] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
107
|
Cremer T, Wibmer L, Calderón SK, Deyko A, Maier F, Steinrück HP. Interfaces of ionic liquids and transition metal surfaces—adsorption, growth, and thermal reactions of ultrathin [C1C1Im][Tf2N] films on metallic and oxidised Ni(111) surfaces. Phys Chem Chem Phys 2012; 14:5153-63. [DOI: 10.1039/c2cp40278e] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
108
|
Frolov AI, Kirchner K, Kirchner T, Fedorov MV. Molecular-scale insights into the mechanisms of ionic liquids interactions with carbon nanotubes. Faraday Discuss 2012; 154:235-47; discussion 313-33, 465-71. [DOI: 10.1039/c1fd00080b] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
109
|
Iwahashi T, Sakai Y, Kim D, Ishiyama T, Morita A, Ouchi Y. Nonlinear vibrational spectroscopic studies on water/ionic liquid([Cnmim]TFSA: n = 4, 8) interfaces. Faraday Discuss 2012; 154:289-301; discussion 313-33, 465-71. [DOI: 10.1039/c1fd00061f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
110
|
Fedorov MV, Lynden-Bell RM. Probing the neutral graphene–ionic liquid interface: insights from molecular dynamics simulations. Phys Chem Chem Phys 2012; 14:2552-6. [DOI: 10.1039/c2cp22730d] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
111
|
Liu H, Maginn E. A molecular dynamics investigation of the structural and dynamic properties of the ionic liquid 1-n-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide. J Chem Phys 2011; 135:124507. [DOI: 10.1063/1.3643124] [Citation(s) in RCA: 151] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
|
112
|
Frost DS, Dai LL. Molecular dynamics simulations of nanoparticle self-assembly at ionic liquid-water and ionic liquid-oil interfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:11339-11346. [PMID: 21823636 DOI: 10.1021/la202069m] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We have studied the self-assembly of hydrophobic nanoparticles at ionic liquid (IL)-water and IL-oil (hexane) interfaces using molecular dynamics (MD) simulations. For the 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF(6)])/water system, the nanoparticles rapidly approached the IL-water interface and equilibrated more into the IL phase although they were initially in the water phase. In contrast, when the nanoparticles were dispersed in the hexane phase, they slowly approached the IL-hexane interface but remained primarily in the hexane phase. Consequently, the IL-hexane interface was rather undisturbed by the nanoparticles whereas the IL-water interface changed significantly in width and morphology to accommodate the presence of the nanoparticles. The equilibrium positions of the nanoparticles were also supported and explained by potential of mean force (PMF) calculations. Interesting ordering and charge distributions were observed at the IL-liquid interfaces. At the IL-hexane interface, the [BMIM] cations preferentially oriented themselves so that they were immersed more in the hexane phase and packed efficiently to reduce steric hindrance. The ordering likely contributed to a heightened IL density and a slightly positive charge at the IL-hexane interface. In contrast, the cations at the IL-water interface were oriented isotropically unless in the presence of nanoparticles, where the cations aligned across the nanoparticle surfaces.
Collapse
Affiliation(s)
- Denzil S Frost
- The School for Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, Arizona 85287, USA
| | | |
Collapse
|
113
|
|
114
|
Liu H, Sale KL, Simmons BA, Singh S. Molecular Dynamics Study of Polysaccharides in Binary Solvent Mixtures of an Ionic Liquid and Water. J Phys Chem B 2011; 115:10251-8. [DOI: 10.1021/jp111738q] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hanbin Liu
- Deconstruction Division, Joint BioEnergy Institute, Emeryville, California, United States
- Biomass Science and Conversion Technology Department, Sandia National Laboratories, Livermore, California, United States
| | - Kenneth L. Sale
- Deconstruction Division, Joint BioEnergy Institute, Emeryville, California, United States
- Biomass Science and Conversion Technology Department, Sandia National Laboratories, Livermore, California, United States
| | - Blake A. Simmons
- Deconstruction Division, Joint BioEnergy Institute, Emeryville, California, United States
- Biomass Science and Conversion Technology Department, Sandia National Laboratories, Livermore, California, United States
| | - Seema Singh
- Deconstruction Division, Joint BioEnergy Institute, Emeryville, California, United States
- Biomass Science and Conversion Technology Department, Sandia National Laboratories, Livermore, California, United States
| |
Collapse
|
115
|
Zhong X, Liu Z, Cao D. Improved Classical United-Atom Force Field for Imidazolium-Based Ionic Liquids: Tetrafluoroborate, Hexafluorophosphate, Methylsulfate, Trifluoromethylsulfonate, Acetate, Trifluoroacetate, and Bis(trifluoromethylsulfonyl)amide. J Phys Chem B 2011; 115:10027-40. [DOI: 10.1021/jp204148q] [Citation(s) in RCA: 124] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Xiujuan Zhong
- Division of Molecular and Materials Simulation, State
Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing
100029, China
| | - Zhiping Liu
- Division of Molecular and Materials Simulation, State
Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing
100029, China
| | - Dapeng Cao
- Division of Molecular and Materials Simulation, State
Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing
100029, China
| |
Collapse
|
116
|
Nakatani K, Suto M. Kinetics of ferrocenium cation transfer across ionic liquid/water interface using recessed microelectrode. J Electroanal Chem (Lausanne) 2011. [DOI: 10.1016/j.jelechem.2011.05.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
117
|
Perkin S, Crowhurst L, Niedermeyer H, Welton T, Smith AM, Gosvami NN. Self-assembly in the electrical double layer of ionic liquids. Chem Commun (Camb) 2011; 47:6572-4. [PMID: 21573282 DOI: 10.1039/c1cc11322d] [Citation(s) in RCA: 174] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We have studied the structure of two ionic liquids confined between negatively charged mica sheets. Both liquids exhibit interfacial layering, however the repeat distance is dramatically different for the two liquids. Our results suggest a transition from alternating cation-anion monolayers to tail-to-tail cation bilayers when the length of the cation hydrocarbon chain is increased.
Collapse
Affiliation(s)
- Susan Perkin
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.
| | | | | | | | | | | |
Collapse
|
118
|
Dang LX, Wick CD. Anion Effects on Interfacial Absorption of Gases in Ionic Liquids. A Molecular Dynamics Study. J Phys Chem B 2011; 115:6964-70. [DOI: 10.1021/jp201113c] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Liem X. Dang
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Collin D. Wick
- Louisiana Tech University, Ruston, Louisiana 71270, United States
| |
Collapse
|
119
|
Dou Q, Sha ML, Fu HY, Wu GZ. Molecular dynamics simulation of the interfacial structure of [C(n)mim][PF6] adsorbed on a graphite surface: effects of temperature and alkyl chain length. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2011; 23:175001. [PMID: 21474885 DOI: 10.1088/0953-8984/23/17/175001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The structures and diffusion behaviors of a series of ionic liquids [C(n)mim][PF(6)] (n = 1, 4, 8 and 12) on a graphite surface have been investigated by means of molecular dynamics simulation. It was found that three or four ordering layers of ionic liquids were formed near the graphite surface, and this layering structure was stable over the temperature range investigated. At the liquid/vacuum interface, the ionic liquid with a butyl chain had a monolayer ordering surface, while [C(8)mim][PF(6)] and [C(12)mim][PF(6)] exhibited a bilayer ordering with a polar domain sandwiched between two orientational nonpolar domains. More impressively, the simulated results showed that for the ionic liquids with alkyl chains longer than C(4), the adjacent alkyl chains in the whole film tended to be parallel to each other, with the imidazolium rings packed closely together. This indicated that the ionic liquids have a better regulated short-range structure than was previously expected. It was also found that both in the bottom layer and in the bulk region, the diffusion of the alkyl chains was much faster than that of the polar groups. However, as the alkyl chain length increased, the charge delocalization in the cation and the enhanced van der Waals interaction between the nonpolar groups contributed by reducing this difference in the diffusivity of major groups.
Collapse
Affiliation(s)
- Q Dou
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China.
| | | | | | | |
Collapse
|
120
|
Reif MM, Hünenberger PH. Computation of methodology-independent single-ion solvation properties from molecular simulations. IV. Optimized Lennard-Jones interaction parameter sets for the alkali and halide ions in water. J Chem Phys 2011; 134:144104. [DOI: 10.1063/1.3567022] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
121
|
Anion-selective electrodes based on ionic liquid membranes: effect of ionic liquid anion on observed response. Anal Bioanal Chem 2011; 400:3025-33. [DOI: 10.1007/s00216-011-4972-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2010] [Revised: 03/18/2011] [Accepted: 03/28/2011] [Indexed: 10/18/2022]
|
122
|
Cremer T, Stark M, Deyko A, Steinrück HP, Maier F. Liquid/solid interface of ultrathin ionic liquid films: [C1C1Im][Tf2N] and [C8C1Im][Tf2N] on Au(111). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:3662-71. [PMID: 21361299 DOI: 10.1021/la105007c] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Ultrathin films of two imidazolium-based ionic liquids (IL), [C(1)C(1)Im][Tf(2)N] (= 1,3-dimethylimidazolium bis(trifluoromethyl)imide) and [C(8)C(1)Im][Tf(2)N] (= 1-methyl-3-octylimidazolium bis(trifluoromethyl)imide) were prepared on a Au(111) single-crystal surface by physical vapor deposition in ultrahigh vacuum. The adsorption behavior, orientation, and growth were monitored via angle-resolved X-ray photoelectron spectroscopy (ARXPS). Coverage-dependent chemical shifts of the IL-derived core levels indicate that for both ILs the first layer is formed from anions and cations directly in contact with the Au surface in a checkerboard arrangement and that for [C(8)C(1)Im][Tf(2)N] a reorientation of the alkyl chain with increasing coverage is found. For both ILs, geometry models of the first adsorption layer are proposed. For higher coverages, both ILs grow in a layer-by-layer fashion up to thicknesses of at least 9 nm (>10 ML). Moreover, beam damage effects are discussed, which are mainly related to the decomposition of [Tf(2)N](-) anions directly adsorbed at the gold surface.
Collapse
Affiliation(s)
- T Cremer
- Lehrstuhl für Physikalische Chemie II and Erlangen Catalysis Resource Center, Friedrich-Alexander-Universität, Erlangen-Nürnberg Egerlandstrasse 3, 91058 Erlangen, Germany
| | | | | | | | | |
Collapse
|
123
|
Forsman J, Woodward CE, Trulsson M. A Classical Density Functional Theory of Ionic Liquids. J Phys Chem B 2011; 115:4606-12. [DOI: 10.1021/jp111747w] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Jan Forsman
- Theoretical Chemistry, Chemical Centre, P.O. Box 124, S-221 00 Lund, Sweden
| | - Clifford E. Woodward
- School of Physical, Environmental and Physical Sciences, University College, University of New South Wales, ADFA Canberra ACT 2600, Australia
| | - Martin Trulsson
- Theoretical Chemistry, Chemical Centre, P.O. Box 124, S-221 00 Lund, Sweden
| |
Collapse
|
124
|
Zherenkova LV, Komarov PV. The study of structure formation in a polymer-containing ionic liquid in terms of the integral equation theory. POLYMER SCIENCE SERIES A 2011. [DOI: 10.1134/s0965545x11030084] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
125
|
Izgorodina EI. Towards large-scale, fully ab initio calculations of ionic liquids. Phys Chem Chem Phys 2011; 13:4189-207. [PMID: 21283896 DOI: 10.1039/c0cp02315a] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Ionic liquids have attracted a substantial amount of interest as replacement of traditional electrolytes in high efficiency electrochemical devices for generation and storage of energy due to their superior physical and chemical properties, especially low volatility and high electrochemical stability. For enhanced performance of the electrochemical devices ionic liquids are required to be highly conductive and low viscous. Long-range Coulomb and short-range dispersion interactions between ions affect physical and chemical properties of ionic liquids in a very complex way, thus preventing direct correlations to the chemical structure. Considering a vast combination of available cations and anions that can be used to synthesize ionic liquids, development of predictive theoretical approaches that allow for accurate tailoring of their physical properties has become crucial to further enhance the performance of electrochemical devices such as lithium batteries, fuel and solar cells. This perspective article gives a thorough overview of current theoretical approaches applied for studying thermodynamic (melting point and enthalpy of vapourisation) and transport (conductivity and viscosity) properties of ionic liquids, emphasizing their reliability and limitations. Strategies for improving predictive power and versatility of existing theoretical approaches are also outlined.
Collapse
|
126
|
Pensado AS, Gomes MFC, Lopes JNC, Malfreyt P, Pádua AAH. Effect of alkyl chain length and hydroxyl group functionalization on the surface properties of imidazolium ionic liquids. Phys Chem Chem Phys 2011; 13:13518-26. [DOI: 10.1039/c1cp20563c] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
127
|
Zahn S, Wendler K, Delle Site L, Kirchner B. Depolarization of water in protic ionic liquids. Phys Chem Chem Phys 2011; 13:15083-93. [DOI: 10.1039/c1cp20288j] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
128
|
Bhargava BL, Yasaka Y, Klein ML. Computational studies of room temperature ionic liquid–water mixtures. Chem Commun (Camb) 2011; 47:6228-41. [DOI: 10.1039/c1cc10575b] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
129
|
Kondrat S, Georgi N, Fedorov MV, Kornyshev AA. A superionic state in nano-porous double-layer capacitors: insights from Monte Carlo simulations. Phys Chem Chem Phys 2011; 13:11359-66. [DOI: 10.1039/c1cp20798a] [Citation(s) in RCA: 215] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
130
|
Thompson D, Coleman S, Diamond D, Byrne R. Electronic structure calculations and physicochemical experiments quantify the competitive liquid ion association and probe stabilisation effects for nitrobenzospiropyran in phosphonium-based ionic liquids. Phys Chem Chem Phys 2011; 13:6156-68. [DOI: 10.1039/c0cp02717k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
131
|
Sarangi SS, Raju SG, Balasubramanian S. Molecular dynamics simulations of ionic liquid–vapour interfaces: effect of cation symmetry on structure at the interface. Phys Chem Chem Phys 2011; 13:2714-22. [DOI: 10.1039/c0cp01272f] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
132
|
Hu YF, Liu ZC, Xu CM, Zhang XM. The molecular characteristics dominating the solubility of gases in ionic liquids. Chem Soc Rev 2011; 40:3802-23. [DOI: 10.1039/c0cs00006j] [Citation(s) in RCA: 155] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
133
|
Chang TM, Dang LX, Devanathan R, Dupuis M. Structure and Dynamics of N,N-Diethyl-N-methylammonium Triflate Ionic Liquid, Neat and with Water, from Molecular Dynamics Simulations. J Phys Chem A 2010; 114:12764-74. [DOI: 10.1021/jp108189z] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- T. M. Chang
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States, and Department of Chemistry, University of Wisconsin—Parkside, Kenosha, Wisconsin 53141, United States
| | - Liem X. Dang
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States, and Department of Chemistry, University of Wisconsin—Parkside, Kenosha, Wisconsin 53141, United States
| | - R. Devanathan
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States, and Department of Chemistry, University of Wisconsin—Parkside, Kenosha, Wisconsin 53141, United States
| | - M. Dupuis
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States, and Department of Chemistry, University of Wisconsin—Parkside, Kenosha, Wisconsin 53141, United States
| |
Collapse
|
134
|
Rodriguez V, Grondin J, Adamietz F, Danten Y. Local Structure in Ionic Liquids Investigated by Hyper-Rayleigh Scattering. J Phys Chem B 2010; 114:15057-65. [DOI: 10.1021/jp107165k] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- V. Rodriguez
- Institut des Sciences Moléculaires - UMR 5255 CNRS, Université de Bordeaux, 351 cours de la Libération, 33405 Talence Cedex, France
| | - J. Grondin
- Institut des Sciences Moléculaires - UMR 5255 CNRS, Université de Bordeaux, 351 cours de la Libération, 33405 Talence Cedex, France
| | - F. Adamietz
- Institut des Sciences Moléculaires - UMR 5255 CNRS, Université de Bordeaux, 351 cours de la Libération, 33405 Talence Cedex, France
| | - Y. Danten
- Institut des Sciences Moléculaires - UMR 5255 CNRS, Université de Bordeaux, 351 cours de la Libération, 33405 Talence Cedex, France
| |
Collapse
|
135
|
Wick CD, Chang TM, Dang LX. Molecular Mechanism of CO2 and SO2 Molecules Binding to the Air/Liquid Interface of 1-Butyl-3-methylimidazolium Tetrafluoroborate Ionic Liquid: A Molecular Dynamics Study with Polarizable Potential Models. J Phys Chem B 2010; 114:14965-71. [DOI: 10.1021/jp106768y] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Collin D. Wick
- Louisiana Tech University, Ruston, Louisiana 71270, United States, University of Wisconsin, Parkside, Wisconsin 53141, United States, and Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Tsun-Mei Chang
- Louisiana Tech University, Ruston, Louisiana 71270, United States, University of Wisconsin, Parkside, Wisconsin 53141, United States, and Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Liem X. Dang
- Louisiana Tech University, Ruston, Louisiana 71270, United States, University of Wisconsin, Parkside, Wisconsin 53141, United States, and Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| |
Collapse
|
136
|
Mallik BS, Siepmann JI. Thermodynamic, Structural and Transport Properties of Tetramethyl Ammonium Fluoride: First Principles Molecular Dynamics Simulations of an Unusual Ionic Liquid. J Phys Chem B 2010; 114:12577-84. [DOI: 10.1021/jp104261h] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bhabani S. Mallik
- Department of Chemistry and Department of Chemical Engineering and Materials Science, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455
| | - J. Ilja Siepmann
- Department of Chemistry and Department of Chemical Engineering and Materials Science, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455
| |
Collapse
|
137
|
Chen LG, Lerum RV, Aranda-Espinoza H, Bermudez H. Surfactant-Mediated Ion Exchange and Charge Reversal at Ionic Liquid Interfaces. J Phys Chem B 2010; 114:11502-8. [DOI: 10.1021/jp106582t] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lang G. Chen
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts, and Fischell Department of Bioengineering, University of Maryland, College Park, Maryland
| | - Ronald V. Lerum
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts, and Fischell Department of Bioengineering, University of Maryland, College Park, Maryland
| | - Helim Aranda-Espinoza
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts, and Fischell Department of Bioengineering, University of Maryland, College Park, Maryland
| | - Harry Bermudez
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts, and Fischell Department of Bioengineering, University of Maryland, College Park, Maryland
| |
Collapse
|
138
|
Chandran A, Prakash K, Senapati S. Structure and dynamics of acetate anion-based ionic liquids from molecular dynamics study. Chem Phys 2010. [DOI: 10.1016/j.chemphys.2010.06.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
139
|
Yuan H, Shimotani H, Tsukazaki A, Ohtomo A, Kawasaki M, Iwasa Y. Hydrogenation-induced surface polarity recognition and proton memory behavior at protic-ionic-liquid/oxide electric-double-layer interfaces. J Am Chem Soc 2010; 132:6672-8. [PMID: 20459143 DOI: 10.1021/ja909110s] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The electric-double-layer (EDL) formed at liquid/solid interfaces provides a broad and interdisciplinary attraction in terms of electrochemistry, photochemistry, catalysts, energy storage, and electronics. Especially in recent years, much effort has been devoted to the fundamental understanding and practical applications of transistor configurations with EDLs because of their ability for high-density charge accumulation. However, to exploit additional new functionalities of such an emerging interface is not only of great importance but also a huge challenge. Here, we demonstrate that, by introducing protic ionic liquid (PIL) as the gate dielectric for ZnO EDL transistors (EDLTs), small and chemically active ions, such as protons and hydroxyls, can serve as an adsorption medium to extend the interfacial functionalities of EDLTs. By selectively driving the H(+) or OH(-) groups onto ZnO channel surfaces with an electric field, the charged adsorbates interact with surface atoms in different adsorption mechanisms, showing remarkable variations in electron transport and providing a possibility for the recognition of surface polarity. Most significantly, the large hysteresis in the transfer characteristics of PIL-EDLTs makes the device available and promising for nonvolatile proton memory devices via surface hydrogenation and dehydrogenation processes. Such a finding provides us with new opportunities to understand liquid/solid heterogeneous interface phenomena and to extend the practical functions of EDLs through controllable interfacial interaction.
Collapse
Affiliation(s)
- Hongtao Yuan
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
| | | | | | | | | | | |
Collapse
|
140
|
D’Anna F, Marullo S, Vitale P, Noto R. Electronic and Steric Effects: How Do They Work in Ionic Liquids? The Case of Benzoic Acid Dissociation. J Org Chem 2010; 75:4828-34. [DOI: 10.1021/jo100914p] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Francesca D’Anna
- Dipartimento di Chimica Organica “E. Paternò”, Università degli Studi di Palermo, Viale delle Scienze-Parco d’Orleans II, 90128 Palermo, Italy
| | - Salvatore Marullo
- Dipartimento di Chimica Organica “E. Paternò”, Università degli Studi di Palermo, Viale delle Scienze-Parco d’Orleans II, 90128 Palermo, Italy
| | - Paola Vitale
- Dipartimento di Chimica Organica “E. Paternò”, Università degli Studi di Palermo, Viale delle Scienze-Parco d’Orleans II, 90128 Palermo, Italy
| | - Renato Noto
- Dipartimento di Chimica Organica “E. Paternò”, Università degli Studi di Palermo, Viale delle Scienze-Parco d’Orleans II, 90128 Palermo, Italy
| |
Collapse
|
141
|
Wang NN, Zhang QG, Wu FG, Li QZ, Yu ZW. Hydrogen Bonding Interactions between a Representative Pyridinium-Based Ionic Liquid [BuPy][BF4] and Water/Dimethyl Sulfoxide. J Phys Chem B 2010; 114:8689-700. [DOI: 10.1021/jp103438q] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nan-Nan Wang
- Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China, College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121000, People’s Republic of China, and The Laboratory of Theoretical and Computational Chemistry, Science and Engineering College of Chemistry and Biology, Yantai University, Yantai 264005, People’s Republic of China
| | - Qing-Guo Zhang
- Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China, College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121000, People’s Republic of China, and The Laboratory of Theoretical and Computational Chemistry, Science and Engineering College of Chemistry and Biology, Yantai University, Yantai 264005, People’s Republic of China
| | - Fu-Gen Wu
- Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China, College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121000, People’s Republic of China, and The Laboratory of Theoretical and Computational Chemistry, Science and Engineering College of Chemistry and Biology, Yantai University, Yantai 264005, People’s Republic of China
| | - Qing-Zhong Li
- Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China, College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121000, People’s Republic of China, and The Laboratory of Theoretical and Computational Chemistry, Science and Engineering College of Chemistry and Biology, Yantai University, Yantai 264005, People’s Republic of China
| | - Zhi-Wu Yu
- Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China, College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121000, People’s Republic of China, and The Laboratory of Theoretical and Computational Chemistry, Science and Engineering College of Chemistry and Biology, Yantai University, Yantai 264005, People’s Republic of China
| |
Collapse
|
142
|
Roy D, Patel N, Conte S, Maroncelli M. Dynamics in an Idealized Ionic Liquid Model. J Phys Chem B 2010; 114:8410-24. [DOI: 10.1021/jp1004709] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Durba Roy
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Nikhil Patel
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Sean Conte
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Mark Maroncelli
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
| |
Collapse
|
143
|
Sarangi S, Zhao W, Müller-Plathe F, Balasubramanian S. Correlation between Dynamic Heterogeneity and Local Structure in a Room-Temperature Ionic Liquid: A Molecular Dynamics Study of [bmim][PF6]. Chemphyschem 2010; 11:2001-10. [DOI: 10.1002/cphc.201000111] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
144
|
Yan T, Wang Y, Knox C. On the Structure of Ionic Liquids: Comparisons between Electronically Polarizable and Nonpolarizable Models I. J Phys Chem B 2010; 114:6905-21. [DOI: 10.1021/jp9089112] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Tianying Yan
- Institute of New Energy Material Chemistry and Department of Material Chemistry, Nankai University, Tianjin 300071, China, Key Laboratory of Frontiers in Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, 55 East Zhongguancun Road, Beijing, 100190, China, and Center for Biophysical Modeling and Simulation and Department of Chemistry, University of Utah, Salt Lake City, Utah 84112-0850
| | - Yanting Wang
- Institute of New Energy Material Chemistry and Department of Material Chemistry, Nankai University, Tianjin 300071, China, Key Laboratory of Frontiers in Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, 55 East Zhongguancun Road, Beijing, 100190, China, and Center for Biophysical Modeling and Simulation and Department of Chemistry, University of Utah, Salt Lake City, Utah 84112-0850
| | - Craig Knox
- Institute of New Energy Material Chemistry and Department of Material Chemistry, Nankai University, Tianjin 300071, China, Key Laboratory of Frontiers in Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, 55 East Zhongguancun Road, Beijing, 100190, China, and Center for Biophysical Modeling and Simulation and Department of Chemistry, University of Utah, Salt Lake City, Utah 84112-0850
| |
Collapse
|
145
|
Yan T, Wang Y, Knox C. On the Dynamics of Ionic Liquids: Comparisons between Electronically Polarizable and Nonpolarizable Models II. J Phys Chem B 2010; 114:6886-904. [DOI: 10.1021/jp908914d] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Tianying Yan
- Institute of New Energy Material Chemistry and Department of Material Chemistry, Nankai University, Tianjin 300071, China, Key Laboratory of Frontiers in Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, 55 East Zhongguancun Road, Beijing, 100190, China, and Center for Biophysical Modeling and Simulation and Department of Chemistry, University of Utah, Salt Lake City, Utah 84112-0850
| | - Yanting Wang
- Institute of New Energy Material Chemistry and Department of Material Chemistry, Nankai University, Tianjin 300071, China, Key Laboratory of Frontiers in Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, 55 East Zhongguancun Road, Beijing, 100190, China, and Center for Biophysical Modeling and Simulation and Department of Chemistry, University of Utah, Salt Lake City, Utah 84112-0850
| | - Craig Knox
- Institute of New Energy Material Chemistry and Department of Material Chemistry, Nankai University, Tianjin 300071, China, Key Laboratory of Frontiers in Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, 55 East Zhongguancun Road, Beijing, 100190, China, and Center for Biophysical Modeling and Simulation and Department of Chemistry, University of Utah, Salt Lake City, Utah 84112-0850
| |
Collapse
|
146
|
Heggen B, Zhao W, Leroy F, Dammers AJ, Müller-Plathe F. Interfacial Properties of an Ionic Liquid by Molecular Dynamics. J Phys Chem B 2010; 114:6954-61. [DOI: 10.1021/jp911128j] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Berit Heggen
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Petersenstrasse 20, 64287 Darmstadt, Germany, Max-Planck-Insitut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Biometris — Applied Statistics, Wageningen University, P.O. Box 100, 6700 AC Wageningen, The Netherlands
| | - Wei Zhao
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Petersenstrasse 20, 64287 Darmstadt, Germany, Max-Planck-Insitut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Biometris — Applied Statistics, Wageningen University, P.O. Box 100, 6700 AC Wageningen, The Netherlands
| | - Frédéric Leroy
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Petersenstrasse 20, 64287 Darmstadt, Germany, Max-Planck-Insitut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Biometris — Applied Statistics, Wageningen University, P.O. Box 100, 6700 AC Wageningen, The Netherlands
| | - Anton J. Dammers
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Petersenstrasse 20, 64287 Darmstadt, Germany, Max-Planck-Insitut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Biometris — Applied Statistics, Wageningen University, P.O. Box 100, 6700 AC Wageningen, The Netherlands
| | - Florian Müller-Plathe
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Petersenstrasse 20, 64287 Darmstadt, Germany, Max-Planck-Insitut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Biometris — Applied Statistics, Wageningen University, P.O. Box 100, 6700 AC Wageningen, The Netherlands
| |
Collapse
|
147
|
Kempter V, Kirchner B. The role of hydrogen atoms in interactions involving imidazolium-based ionic liquids. J Mol Struct 2010. [DOI: 10.1016/j.molstruc.2010.02.003] [Citation(s) in RCA: 114] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
148
|
Nishi N, Yasui Y, Uruga T, Tanida H, Yamada T, Nakayama SI, Matsuoka H, Kakiuchi T. Ionic multilayers at the free surface of an ionic liquid, trioctylmethylammonium bis(nonafluorobutanesulfonyl)amide, probed by x-ray reflectivity measurements. J Chem Phys 2010; 132:164705. [DOI: 10.1063/1.3398029] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
149
|
Chen T, Chidambaram M, Liu Z, Smit B, Bell AT. Viscosities of the Mixtures of 1-Ethyl-3-Methylimidazolium Chloride with Water, Acetonitrile and Glucose: A Molecular Dynamics Simulation and Experimental Study. J Phys Chem B 2010; 114:5790-4. [DOI: 10.1021/jp911372j] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ting Chen
- Energy Biosciences Institute and Department of Chemical Engineering, University of California, Berkeley, California 94720-1462
| | - Mandan Chidambaram
- Energy Biosciences Institute and Department of Chemical Engineering, University of California, Berkeley, California 94720-1462
| | - Zhiping Liu
- Energy Biosciences Institute and Department of Chemical Engineering, University of California, Berkeley, California 94720-1462
| | - Berend Smit
- Energy Biosciences Institute and Department of Chemical Engineering, University of California, Berkeley, California 94720-1462
| | - Alexis T. Bell
- Energy Biosciences Institute and Department of Chemical Engineering, University of California, Berkeley, California 94720-1462
| |
Collapse
|
150
|
Nakano H, Yamamoto T, Kato S. A wave-function based approach for polarizable charge model: Systematic comparison of polarization effects on protic, aprotic, and ionic liquids. J Chem Phys 2010; 132:044106. [PMID: 20113018 DOI: 10.1063/1.3298873] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
We first describe a wave-function based formalism of polarizable charge model by starting from the Hartree product ansatz for the total wave function and making the second-order expansion of individual molecular energies with the use of partial charge operators. The resulting model is shown to be formally equivalent to the charge response kernel model that starts from the linear-response approximation to partial charges, and also closely related to a family of fluctuating charge models that are based on the electronegativity equalization principle. We then apply the above model to a systematic comparison of polarization effects on qualitatively different liquids, namely, protic solvents (water and methanol), an aprotic polar solvent (acetonitrile), and imidazolium-based ionic liquids. Electronic polarization is known to decelerate molecular motions in conventional solvents while it accelerates them in ionic liquids. To obtain more insights into these phenomena, we consider an effective decomposition of total polarization energy into molecular contributions, and show that their statistical distribution is well-correlated with the acceleration/deceleration of molecular motions. In addition, we perform effective nonpolarizable simulations based on mean polarized charges, and compare them with fully polarizable simulations. The result shows that the former can reproduce structural properties of conventional solvents rather accurately, while they fail qualitatively to reproduce acceleration of molecular motions in ionic liquids.
Collapse
Affiliation(s)
- Hiroshi Nakano
- Department of Chemistry, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | | | | |
Collapse
|