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Skarmoutsos I, Guardia E, Samios J. Local structural fluctuations, hydrogen bonding and structural transitions in supercritical water. J Supercrit Fluids 2017. [DOI: 10.1016/j.supflu.2017.08.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Shvab I, Sadus RJ. Structure and polarization properties of water: molecular dynamics with a nonadditive intermolecular potential. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2012; 85:051509. [PMID: 23004769 DOI: 10.1103/physreve.85.051509] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2012] [Revised: 04/23/2012] [Indexed: 06/01/2023]
Abstract
The temperature and density dependence of the structure and polarization properties of bulk water were systematically investigated using the ab initio MCYna potential [Li et al., J. Chem. Phys. 127, 154509 (2007)], which includes nonadditive contributions to intermolecular interactions. Molecular dynamics simulations were conducted for isochores of 1, 0.8, and 0.6 g/cm^{3} and temperatures from 278 to 750 K. Special attention was paid to the structural change of water in the range from the normal boiling point to supercritical temperatures. At temperatures below the normal boiling temperature, water exhibits a tetrahedral structure along the 0.8 and 0.6 g/cm^{3} isochores. A significant collapse of the hydrogen bonding network was observed at temperatures of 450, 550, and 650 K. The MCYna potential was able to successfully reproduce the experimental dielectric constant. The dielectric constant and average dipole moments decrease with increasing temperature and decreasing density due to weakened polarization. A comparison is also made with SPC-based models.
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Affiliation(s)
- I Shvab
- Centre for Molecular Simulation, Swinburne University of Technology, P.O. Box 218, Hawthorn, Victoria 3122, Australia
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Re M, Laria D, Fernández-Prini R. The role of solvent structure in perturbation methods applied to the dissolution of an apolar solute in water. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19961000810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Skarmoutsos I, Guardia E. Effect of the local hydrogen bonding network on the reorientational and translational dynamics in supercritical water. J Chem Phys 2010; 132:074502. [DOI: 10.1063/1.3305326] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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Pártay LB, Jedlovszky P, Brovchenko I, Oleinikova A. Percolation Transition in Supercritical Water: A Monte Carlo Simulation Study. J Phys Chem B 2007; 111:7603-9. [PMID: 17567064 DOI: 10.1021/jp070575j] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Computer simulations of water have been performed on the canonical ensemble at 15 different molecular number densities, ranging from 0.006 to 0.018 A-3, along the supercritical isotherm of 700 K, in order to characterize the percolation transition in the system. It is found that the percolation transition occurs at a somewhat higher density than what is corresponding to the supercritical extension of the boiling line. We have shown that the fractal dimension of the largest cluster and the probability of finding a spanning cluster are the most appropriate properties for the location of the true percolation threshold. Thus, percolation transition occurs when the fractal dimension of the largest cluster reaches 2.53, and the probability of finding a cluster that spans the system in at least one dimension and in all the three dimensions reaches 0.97 and 0.65, respectively. On the other hand, the percolation threshold cannot be accurately located through the cluster size distribution, as it is distorted by appearance of clusters crossing the finite simulated system even far below the percolation threshold. The structure of the largest water cluster is dominated by a linear, chainlike arrangement, which does not change noticeably until the largest cluster becomes infinite.
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Affiliation(s)
- Lívia B Pártay
- Laboratory of Interfaces and Nanosize Systems, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny. 1/a, H-1117 Budapest, Hungary.
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Molecular-Based Modeling of Water and Aqueous Solutions at Supercritical Conditions. ADVANCES IN CHEMICAL PHYSICS 2007. [DOI: 10.1002/9780470141687.ch3] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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Skarmoutsos I, Samios J. Local Density Inhomogeneities and Dynamics in Supercritical Water: A Molecular Dynamics Simulation Approach. J Phys Chem B 2006; 110:21931-7. [PMID: 17064161 DOI: 10.1021/jp060955p] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Molecular dynamics atomistic simulations in the canonical ensemble (NVT-MD) have been used to investigate the "Local Density Inhomogeneities and their Dynamics" in pure supercritical water. The simulations were carried out along a near-critical isotherm (Tr = T/Tc = 1.03) and for a wide range of densities below and above the critical one (0.2 rho(c) - 2.0 rho(c)). The results obtained reveal the existence of significant local density augmentation effects, which are found to be sufficiently larger in comparison to those reported for nonassociated fluids. The time evolution of the local density distribution around each molecule was studied in terms of the appropriate time correlation functions C(Delta)rhol(t). It is found that the shape of these functions changes significantly by increasing the density of the fluid. Finally, the local density reorganization times for the first and second coordination shell derived from these correlations exhibit a decreasing behavior by increasing the density of the system, signifying the density effect upon the dynamics of the local environment around each molecule.
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Affiliation(s)
- Ioannis Skarmoutsos
- Department of Chemistry, Laboratory of Physical Chemistry, University of Athens, Panepistimiopolis 157-71, Athens, Greece
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Abstract
Solvation in supercritical water under equilibrium and nonequilibrium conditions is studied via molecular dynamics simulations. The influence of solute charge distributions and solvent density on the solvation structures and dynamics is examined with a diatomic probe solute molecule. It is found that the solvation structure varies dramatically with the solute dipole moment, especially in low-density water, in accord with many previous studies on ion solvation. This electrostrictive effect has important consequences for solvation dynamics. In the case of a nonequilibrium solvent relaxation, if there are sufficiently many water molecules close to the solute at the outset of the relaxation, the solvent response measured as a dynamic Stokes shift is almost completely governed by inertial rotations of these water molecules. By contrast, in the opposite case of a low local solvent density near the solute, not only rotations but also translations of water molecules play an important role in solvent relaxation dynamics. The applicability of a linear response is found to be significantly restricted at low water densities.
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Affiliation(s)
- Jinsong Duan
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213-2683, USA
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Wernet P, Testemale D, Hazemann JL, Argoud R, Glatzel P, Pettersson LGM, Nilsson A, Bergmann U. Spectroscopic characterization of microscopic hydrogen-bonding disparities in supercritical water. J Chem Phys 2005; 123:154503. [PMID: 16252958 DOI: 10.1063/1.2064867] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The local hydrogen-bonding environment in supercritical water (380 degrees C, 300 bars, density 0.54 gcm3) was studied by x-ray Raman scattering at the oxygen K edge. The spectra are compared to those of the gas phase, liquid surface, bulk liquid, and bulk ice, as well as to calculated spectra. The experimental model systems are used to assign spectral features and to quantify specific local hydrogen-bonding situations in supercritical water. The first coordination shell of the molecules is characterized in more detail with the aid of the calculations. Our analysis suggests that approximately 65% of the molecules in supercritical water are hydrogen bonded in configurations that are distinctly different from those in liquid water and ice. In contrast to liquid water the bonded molecules in supercritical water have four intact hydrogen bonds and in contrast to ice large variations of bond angles and distances are observed. The remaining approximately 35% of the molecules exhibit two free O-H bonds and are thus either not involved in hydrogen bonding at all or have one or two hydrogen bonds on the oxygen side. We determine an average O-O distance of 3.1+/-0.1 A in supercritical water for the H bonded molecules at the conditions studied here. This and the corresponding hydrogen bond lengths are shown to agree with neutron- and x-ray-diffraction data at similar conditions. Our results on the local hydrogen-bonding environment with mainly two disparate hydrogen-bonding configurations are consistent with an extended structural model of supercritical water as a heterogeneous system with small patches of bonded molecules in various tetrahedral configurations and surrounding nonbonded gas-phase-like molecules.
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Affiliation(s)
- Ph Wernet
- Stanford Synchrotron Radiation Laboratory, P.O. Box 20450 Stanford, California 94309, USA
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Jin Y, Ikawa SI. Near-infrared spectroscopic study of water at high temperatures and pressures. J Chem Phys 2003. [DOI: 10.1063/1.1628667] [Citation(s) in RCA: 38] [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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Peltz C, Baranyai A, Chialvo AA, Cummings PT. Microstructure of Water At the Level of Three-particle Correlation Functions As Predicted by Classical Intermolecular Models. MOLECULAR SIMULATION 2003. [DOI: 10.1080/0892702031000065692] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Akiya N, Savage PE. Roles of water for chemical reactions in high-temperature water. Chem Rev 2002; 102:2725-50. [PMID: 12175266 DOI: 10.1021/cr000668w] [Citation(s) in RCA: 705] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Naoko Akiya
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136, USA
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CHIALVO ARIELA, SIMONSON JMICHAEL. The structure of concentrated NiCl2aqueous solutions: what is molecular simulation revealing about the neutron scattering methodologies? Mol Phys 2002. [DOI: 10.1080/00268970110118231] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Matubayasi N, Nakahara M. Association and Dissociation of Nonpolar Solutes in Super- and Subcritical Water. J Phys Chem B 2000. [DOI: 10.1021/jp002105u] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nobuyuki Matubayasi
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Masaru Nakahara
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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Tassaing T, Bellissent-Funel MC. The dynamics of supercritical water: A quasielastic incoherent neutron scattering study. J Chem Phys 2000. [DOI: 10.1063/1.1286599] [Citation(s) in RCA: 35] [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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Matubayasi N, Nakahara M. Super- and subcritical hydration of nonpolar solutes. I. Thermodynamics of hydration. J Chem Phys 2000. [DOI: 10.1063/1.481409] [Citation(s) in RCA: 36] [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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WEITKAMP T, NEUEFEIND J, FISCHER HE, ZEIDLER MD. Hydrogen bonding in liquid methanol at ambient conditions and at high pressure. Mol Phys 2000. [DOI: 10.1080/00268970009483276] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Jedlovszky P. Voronoi polyhedra analysis of the local structure of water from ambient to supercritical conditions. J Chem Phys 1999. [DOI: 10.1063/1.479893] [Citation(s) in RCA: 44] [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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Marcus Y. The structuredness of supercritical water up to 600 °C and 100 MPa as obtained from relative permittivity data. J Mol Liq 1999. [DOI: 10.1016/s0167-7322(99)00059-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Bursulaya BD, Kim HJ. Molecular dynamics simulation study of water near critical conditions. I. Structure and solvation free energetics. J Chem Phys 1999. [DOI: 10.1063/1.478929] [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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Matubayasi N, Wakai C, Nakahara M. Structural study of supercritical water. II. Computer simulations. J Chem Phys 1999. [DOI: 10.1063/1.478728] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Jedlovszky P, Richardi J. Comparison of different water models from ambient to supercritical conditions: A Monte Carlo simulation and molecular Ornstein–Zernike study. J Chem Phys 1999. [DOI: 10.1063/1.478704] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Martı́ J. Analysis of the hydrogen bonding and vibrational spectra of supercritical model water by molecular dynamics simulations. J Chem Phys 1999. [DOI: 10.1063/1.478593] [Citation(s) in RCA: 199] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kalinichev A, Churakov S. Size and topology of molecular clusters in supercritical water: a molecular dynamics simulation. Chem Phys Lett 1999. [DOI: 10.1016/s0009-2614(99)00174-8] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Yoshii N, Miura S, Okazaki S. Density Fluctuation and Hydrogen-Bonded Clusters in Supercritical Water. A Molecular Dynamics Analysis Using a Polarizable Potential Model. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1999. [DOI: 10.1246/bcsj.72.151] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Yoshii N, Yoshie H, Miura S, Okazaki S. A molecular dynamics study of sub- and supercritical water using a polarizable potential model. J Chem Phys 1998. [DOI: 10.1063/1.477098] [Citation(s) in RCA: 92] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Botti A, Bruni F, Ricci MA, Soper AK. Neutron diffraction study of high density supercritical water. J Chem Phys 1998. [DOI: 10.1063/1.476909] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Bursulaya BD, Jeon J, Zichi DA, Kim HJ. Generalized molecular mechanics including quantum electronic structure variation of polar solvents. II. A molecular dynamics simulation study of water. J Chem Phys 1998. [DOI: 10.1063/1.475725] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Kalinichev AG, Bass JD. Hydrogen Bonding in Supercritical Water. 2. Computer Simulations. J Phys Chem A 1997. [DOI: 10.1021/jp971218j] [Citation(s) in RCA: 171] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. G. Kalinichev
- Department of Geology, University of Illinois at UrbanaChampaign, 1301 W. Green Street, 245 NHB, Urbana, Illinois 61801
| | - J. D. Bass
- Department of Geology, University of Illinois at UrbanaChampaign, 1301 W. Green Street, 245 NHB, Urbana, Illinois 61801
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Bellissent-Funel MC, Tassaing T, Zhao H, Beysens D, Guillot B, Guissani Y. The structure of supercritical heavy water as studied by neutron diffraction. J Chem Phys 1997. [DOI: 10.1063/1.475155] [Citation(s) in RCA: 110] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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35
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Affiliation(s)
- Markus M. Hoffmann
- Contribution from the Departments of Physics and Chemistry1105, Washington University, St. Louis, Missouri 63130-4899
| | - Mark S. Conradi
- Contribution from the Departments of Physics and Chemistry1105, Washington University, St. Louis, Missouri 63130-4899
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Soper AK, Bruni F, Ricci MA. Site–site pair correlation functions of water from 25 to 400 °C: Revised analysis of new and old diffraction data. J Chem Phys 1997. [DOI: 10.1063/1.473030] [Citation(s) in RCA: 501] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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37
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Chialvo AA, Cummings PT. Engineering a simple polarizable model for the molecular simulation of water applicable over wide ranges of state conditions. J Chem Phys 1996. [DOI: 10.1063/1.472718] [Citation(s) in RCA: 134] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Bruni F, Ricci MA, Soper AK. Unpredicted density dependence of hydrogen bonding in water found by neutron diffraction. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:11876-11879. [PMID: 9985019 DOI: 10.1103/physrevb.54.11876] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Jedlovszky P, Vallauri R. Reverse Monte Carlo analysis of neutron diffraction results: Water around its critical point. J Chem Phys 1996. [DOI: 10.1063/1.472106] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Chialvo AA, Cummings PT. Microstructure of Ambient and Supercritical Water. Direct Comparison between Simulation and Neutron Scattering Experiments. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp951445q] [Citation(s) in RCA: 114] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ariel A. Chialvo
- Department of Chemical Engineering, 419 Dougherty Engineering Building, University of Tennessee, Knoxville, Tennessee 37996-2200, and Chemical Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6268
| | - Peter T. Cummings
- Department of Chemical Engineering, 419 Dougherty Engineering Building, University of Tennessee, Knoxville, Tennessee 37996-2200, and Chemical Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6268
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Margulis C, Laria D, Fernandez-Prini R. Ionic aggregates in steam. Part 1.—Equilibrium configurations. ACTA ACUST UNITED AC 1996. [DOI: 10.1039/ft9969202703] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Brodholt J, Sampoli M, Vallauri R. Parameterizing a polarizable intermolecular potential for water. Mol Phys 1995. [DOI: 10.1080/00268979500101901] [Citation(s) in RCA: 95] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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