101
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Yan Q, de Pablo JJ. Phase equilibria and clustering in size-asymmetric primitive model electrolytes. J Chem Phys 2001. [DOI: 10.1063/1.1335653] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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102
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Hyperparallel tempering Monte Carlo and its applications. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s0065-2377(01)28002-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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103
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Ciach A, Stell G. Why the Ising and continuous-space models of ionic systems exhibit essentially different critical behavior. J Chem Phys 2001. [DOI: 10.1063/1.1329138] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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104
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Romero-Enrique JM, Orkoulas G, Panagiotopoulos AZ, Fisher ME. Coexistence and criticality in size-asymmetric hard-core electrolytes. PHYSICAL REVIEW LETTERS 2000; 85:4558-4561. [PMID: 11082595 DOI: 10.1103/physrevlett.85.4558] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2000] [Indexed: 05/23/2023]
Abstract
Liquid-vapor coexistence curves and critical parameters for hard-core 1:1 electrolyte models with diameter ratios lambda = sigma(-)/sigma(+) = 1 to 5.7 have been studied by fine-discretization Monte Carlo methods. Normalizing via the length scale sigma(+/-) = 1 / 2(sigma(+)+sigma(-)), relevant for the low densities in question, both T(*)(c) ( = k(B)T(c)sigma(+/-)/q(2)) and rho(*)(c) ( = rho(c)sigma(3)(+/-)) decrease rapidly (from approximately 0.05 to 0.03 and 0.08 to 0.04, respectively) as lambda increases. These trends, which unequivocally contradict current theories, are closely mirrored by results for tightly tethered dipolar dimers (with T(*)(c) lower by approximately 0%-11% and rho(*)(c) greater by 37%-12%).
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Affiliation(s)
- JM Romero-Enrique
- Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742-2431, USA
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105
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Kristóf T, Boda D, Szalai I, Henderson D. A Gibbs ensemble Monte Carlo study of phase coexistence in the solvent primitive model. J Chem Phys 2000. [DOI: 10.1063/1.1313538] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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106
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Bresme F, Vega C, Abascal JL. Order-disorder transition in the solid phase of a charged hard sphere model. PHYSICAL REVIEW LETTERS 2000; 85:3217-3220. [PMID: 11019305 DOI: 10.1103/physrevlett.85.3217] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2000] [Indexed: 05/23/2023]
Abstract
We investigate the solid phases of the restricted primitive model (RPM). Monte Carlo simulations show the existence of an order-disorder transition from a substitutionally disordered face centered cubic lattice (fcc) to a new ordered fcc structure which is proposed as the ground state of the RPM at the close packing density. Our results suggest that the new phase might turn out in a new triple point in the RPM phase diagram involving three solid phases: CsCl, fcc ordered and fcc disordered structures. The order-disorder transition is also studied using the cell theory. The theory shows good agreement with the simulation results and suggests that the transition is weakly first order.
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Affiliation(s)
- F Bresme
- Department of Chemistry, Imperial College of Science, Technology and Medicine, Exhibition Road, London SW7 2AY, United Kingdom
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107
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17 Ionic fluids near critical points and at high temperatures. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s1874-5644(00)80007-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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108
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6 Equations of state from analytically solvable integral equation approximations. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s1874-5644(00)80017-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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109
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BERARDI R, FEHERVARI M, ZANNONI C. A Monte Carlo simulation study of associated liquid crystals. Mol Phys 1999. [DOI: 10.1080/00268979909482918] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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110
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Yan Q, de Pablo JJ. Hyper-parallel tempering Monte Carlo: Application to the Lennard-Jones fluid and the restricted primitive model. J Chem Phys 1999. [DOI: 10.1063/1.480282] [Citation(s) in RCA: 282] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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111
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Camp PJ, Patey GN. Ion association and condensation in primitive models of electrolyte solutions. J Chem Phys 1999. [DOI: 10.1063/1.480243] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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112
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113
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Camp PJ, Patey GN. Ion association in model ionic fluids. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1999; 60:1063-6. [PMID: 11969854 DOI: 10.1103/physreve.60.1063] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/1998] [Indexed: 04/18/2023]
Abstract
Monte Carlo simulations are used to investigate the temperature and pressure (density) dependence of ion association in the restricted primitive model. It is shown that at temperatures below the critical temperature T(c) the vapor consists almost exclusively of strongly bound ion pairs at or near contact. Significant ion-pair dissociation begins at temperatures very near T(c). This raises the possibility that compositional fluctuations between strongly bound and free ions influence the critical behavior. We note qualitative similarities between the present results and the Kosterlitz-Thouless transition in the two-dimensional Coulomb gas.
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Affiliation(s)
- P J Camp
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada, V6T 1Z1
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114
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Orkoulas G, Panagiotopoulos AZ. Phase behavior of the restricted primitive model and square-well fluids from Monte Carlo simulations in the grand canonical ensemble. J Chem Phys 1999. [DOI: 10.1063/1.477798] [Citation(s) in RCA: 215] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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115
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Shelley JC, Patey GN. Phase behavior of ionic solutions: Comparison of the primitive and explicit solvent models. J Chem Phys 1999. [DOI: 10.1063/1.477804] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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116
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Weis JJ, Levesque D, Caillol JM. Restricted primitive model of an ionic solution confined to a plane. J Chem Phys 1998. [DOI: 10.1063/1.477371] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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117
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Weiss VC, Schröer W. Macroscopic theory for equilibrium properties of ionic-dipolar mixtures and application to an ionic model fluid. J Chem Phys 1998. [DOI: 10.1063/1.476210] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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118
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Valleau J, Torrie G. Heat capacity of the restricted primitive model near criticality. J Chem Phys 1998. [DOI: 10.1063/1.475954] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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119
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Kraska T. An association theory for the formation of ion oligomers: Extensions from the low density limit. J Chem Phys 1998. [DOI: 10.1063/1.475904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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120
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Høye J, Stell G. The charge-dipole contribution to the density-density correlation matrix in near-critical electrolytes. J Mol Liq 1997. [DOI: 10.1016/s0167-7322(97)00088-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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121
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Caillol JM, Levesque D, Weis JJ. A Monte Carlo finite size scaling study of charged hard-sphere criticality. J Chem Phys 1997. [DOI: 10.1063/1.474509] [Citation(s) in RCA: 84] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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122
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Stafiej J, Badiali JP. A simple model for Coulombic systems. Thermodynamics, correlation functions and criticality. J Chem Phys 1997. [DOI: 10.1063/1.473919] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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123
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Schröer W, Weiss VC. Effect of dipole-ion interactions on the Ginzburg temperature of ionic fluids. J Chem Phys 1997. [DOI: 10.1063/1.473737] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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124
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Caccamo C, Costa D, Fucile A. A Gibbs ensemble Monte Carlo study of phase coexistence in model C60. J Chem Phys 1997. [DOI: 10.1063/1.473192] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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125
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Caillol JM, Levesque D, Weis JJ. Critical Behavior of the Restricted Primitive Model. PHYSICAL REVIEW LETTERS 1996; 77:4039-4042. [PMID: 10062372 DOI: 10.1103/physrevlett.77.4039] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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126
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Fisher ME, Lee BP. Ginzburg Criterion for Coulombic Criticality. PHYSICAL REVIEW LETTERS 1996; 77:3561-3564. [PMID: 10062251 DOI: 10.1103/physrevlett.77.3561] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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127
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Vega C, Bresme F, Abascal JL. Fluid-solid equilibrium of a charged hard-sphere model. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1996; 54:2746-2760. [PMID: 9965388 DOI: 10.1103/physreve.54.2746] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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128
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Orkoulas G, Panagiotopoulos AZ. Phase diagram of the two‐dimensional Coulomb gas: A thermodynamic scaling Monte Carlo study. J Chem Phys 1996. [DOI: 10.1063/1.471406] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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129
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Yeh S, Zhou Y, Stell G. Phase Separation of Ionic Fluids: An Extended Ebeling−Grigo Approach. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp952412d] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Showguei Yeh
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400
| | - Yaoqi Zhou
- Department of Chemical Engineering, North Carolina State University, Raleigh, North Carolina 27695-7905
| | - George Stell
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400
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130
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Shelley JC, Patey GN. A comparison of liquid–vapor coexistence in charged hard sphere and charged hard dumbbell fluids. J Chem Phys 1995. [DOI: 10.1063/1.470142] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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131
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Manificat G, Caillol J. Search of the liquid–vapor coexistence of the two‐dimensional restricted primitive model. J Chem Phys 1995. [DOI: 10.1063/1.470665] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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132
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Narayanan T, Pitzer KS. Critical phenomena in ionic fluids: A systematic investigation of the crossover behavior. J Chem Phys 1995. [DOI: 10.1063/1.469223] [Citation(s) in RCA: 103] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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133
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Caillol J, Weis J. Free energy and cluster structure in the coexistence region of the restricted primitive model. J Chem Phys 1995. [DOI: 10.1063/1.469012] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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134
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Zhou Y, Stell G. Criticality of charged systems. II. The binary mixture of hard spheres and ions. J Chem Phys 1995. [DOI: 10.1063/1.469311] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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135
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Caillol JM. A Monte Carlo study of the dielectric constant of the restricted primitive model of electrolytes on the vapor branch of the coexistence line. J Chem Phys 1995. [DOI: 10.1063/1.469275] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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136
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Bresme F, Lomba E, Weis JJ, Abascal JL. Monte Carlo simulation and integral-equation studies of a fluid of charged hard spheres near the critical region. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1995; 51:289-296. [PMID: 9962645 DOI: 10.1103/physreve.51.289] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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137
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González-Tovar E, Outhwaite C. The gas-liquid coexistence region of a primitive model electrolyte in the mean electrostatic potential approach. Mol Phys 1994. [DOI: 10.1080/00268979400101941] [Citation(s) in RCA: 15] [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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138
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Gil Montoro JC, Bresme F, Abascal JLF. Ionic association in electrolyte solutions: A Voronoi polyhedra analysis. J Chem Phys 1994. [DOI: 10.1063/1.467839] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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139
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Levin Y, Li X, Fisher ME. Coulombic criticality in general dimensions. PHYSICAL REVIEW LETTERS 1994; 73:2716-2719. [PMID: 10057174 DOI: 10.1103/physrevlett.73.2716] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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140
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Lomba E, Weis JJ, Stell G. Phase transitions in a continuum model of the classical Heisenberg magnet: The antiferromagnetic system. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1994; 50:3853-3859. [PMID: 9962439 DOI: 10.1103/physreve.50.3853] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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141
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