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Smith EJ, Bryk T, Haymet ADJ. Free energy of solvation of simple ions: Molecular-dynamics study of solvation of Cl− and Na+ in the ice/water interface. J Chem Phys 2005; 123:34706. [PMID: 16080754 DOI: 10.1063/1.1953578] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Molecular-dynamics simulations of Cl(-) and Na(+) ions are performed to calculate ionic solvation free energies in both bulk simple point-charge/extended water and ice 1 h at several different temperatures, and at the basal ice 1 h/water interface. For the interface we calculate the free energy of "transfer" of the ions across the ice/water interface. For the ions in bulk water in the NPT ensemble at 298 K and 1 atm, results are found to be in good agreement with experiments, and with other simulation results. Simulations performed in the NVT ensemble are shown to give equivalent solvation free energies, and this ensemble is used for the interfacial simulations. Solvation free energies of Cl(-) and Na(+) ions in ice at 150 K are found to be approximately 30 and approximately 20 kcal mol(-1), respectively, less favorable than for water at room temperature. Near the melting point of the model the solvation of the ions in water is the same (within statistical error) as that measured at room temperature, and in the ice is equivalent and approximately 10 kcal mol(-1) less favorable than the liquid. The free energy of transfer for each ion across ice/water interface is calculated and is in good agreement with the bulk observations for the Cl(-) ion. However, for the model of Na(+) the long-range electrostatic contribution to the free energy was more negative in the ice than the liquid, in contrast with the results observed in the bulk calculations.
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Affiliation(s)
- E J Smith
- Department of Chemistry, University of Houston, Texas 77204-5003, USA
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Heger D, Jirkovský J, Klán P. Aggregation of Methylene Blue in Frozen Aqueous Solutions Studied by Absorption Spectroscopy. J Phys Chem A 2005; 109:6702-9. [PMID: 16834023 DOI: 10.1021/jp050439j] [Citation(s) in RCA: 153] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The paper presents a qualitative as well as quantitative spectroscopic study of methylene blue (MB) aggregation that occurs upon freezing the aqueous solutions over a wide concentration range. The Gaussian curve analysis and the multivariate curve resolution-alternating least squares method were used to determine the number and concentration of chemical species responsible for the overlaying absorption visible spectra measured. The results show the extent of aggregation for the concentrations above 10(-7) mol L(-1), being dependent on the freezing rate and the initial concentration. While the local concentration of MB at the grain boundaries of polycrystalline ice increased by approximately 3 orders of magnitude upon fast freezing at 77 K compared to the liquid phase, the concentration raised at least by 6 orders of magnitude upon slow freezing at 243 K. Since enhancement of the local concentration of solutes plays an important role in (photo)chemical transformations in solid aqueous media, this work helps to understand how the initial conditions control the course of the process. The results are relevant in other interdisciplinary fields, such as environmental chemistry, cosmochemistry, or geochemistry.
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Affiliation(s)
- Dominik Heger
- Department of Organic Chemistry, Faculty of Science, Masaryk University, Kotlarska 2, CZ-611 37 Brno, Czech Republic
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Gay SC, Smith EJ, Haymet ADJ. Dynamics of melting and stability of ice 1h: Molecular-dynamics simulations of the SPC/E model of water. J Chem Phys 2002. [DOI: 10.1063/1.1471556] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hayward JA, Haymet ADJ. The ice/water interface: Molecular dynamics simulations of the basal, prism, {202̄1}, and {21̄1̄0} interfaces of ice Ih. J Chem Phys 2001. [DOI: 10.1063/1.1333680] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Nada H, Furukawa Y. Anisotropy in Molecular-Scaled Growth Kinetics at Ice−Water Interfaces. J Phys Chem B 1997. [DOI: 10.1021/jp963173c] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hiroki Nada
- National Institute for Resources and Environment, Tsukuba 305, Japan
| | - Yoshinori Furukawa
- Institute of Low Temperature Science, Hokkaido University, Sapporo 060, Japan
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Takenaka N, Ueda A, Daimon T, Bandow H, Dohmaru T, Maeda Y. Acceleration Mechanism of Chemical Reaction by Freezing: The Reaction of Nitrous Acid with Dissolved Oxygen. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp9525806] [Citation(s) in RCA: 131] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Norimichi Takenaka
- Department of Applied Materials Science, College of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 593, Japan, and Research Institute for Advanced Science and Technology, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 593, Japan
| | - Akihiro Ueda
- Department of Applied Materials Science, College of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 593, Japan, and Research Institute for Advanced Science and Technology, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 593, Japan
| | - Tohru Daimon
- Department of Applied Materials Science, College of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 593, Japan, and Research Institute for Advanced Science and Technology, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 593, Japan
| | - Hiroshi Bandow
- Department of Applied Materials Science, College of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 593, Japan, and Research Institute for Advanced Science and Technology, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 593, Japan
| | - Takaaki Dohmaru
- Department of Applied Materials Science, College of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 593, Japan, and Research Institute for Advanced Science and Technology, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 593, Japan
| | - Yasuaki Maeda
- Department of Applied Materials Science, College of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 593, Japan, and Research Institute for Advanced Science and Technology, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 593, Japan
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Mesquita ON, Cummins HZ. Comment on "Fluctuations during freezing and melting at the solid-liquid interface of xenon". PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:1410-1411. [PMID: 9985415 DOI: 10.1103/physrevb.54.1410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Williams LM, Cummins HZ, Ladeira LO, Mesquita ON. Angular intensity of nonequilibrium interfacial dynamic light scattering: Succinonitrile and naphthalene. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1992; 45:3880-3891. [PMID: 9907436 DOI: 10.1103/physreva.45.3880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Feitosa MI, Mesquita ON. Wall-drag effect on diffusion of colloidal particles near surfaces: A photon correlation study. PHYSICAL REVIEW A 1991; 44:6677-6685. [PMID: 9905796 DOI: 10.1103/physreva.44.6677] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Laherrère JM, Mellet R, Savary H, Licoppe C, Scott JF, Tolédano JC. Onset of light scattering by a solid-liquid interface during growth. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1990; 42:3634-3636. [PMID: 9904450 DOI: 10.1103/physreva.42.3634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Williams LM, Srinivasan MR, Cummins HZ. Direct observation of microbubbles in directional solidification of salol. PHYSICAL REVIEW LETTERS 1990; 64:1526-1528. [PMID: 10041420 DOI: 10.1103/physrevlett.64.1526] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Laherrère JM, Savary H, Mellet R, Tolédano JC. Dynamic-light-scattering study of the solid-liquid interface in succinonitrile during growth. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1990; 41:1142-1144. [PMID: 9903196 DOI: 10.1103/physreva.41.1142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Vesenka JP, Yeh Y. Dynamic light scattering at a growing crystal interface: Ice-water system. PHYSICAL REVIEW. A, GENERAL PHYSICS 1988; 38:5310-5315. [PMID: 9900253 DOI: 10.1103/physreva.38.5310] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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