51
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Xi E, Remsing RC, Patel AJ. Sparse Sampling of Water Density Fluctuations in Interfacial Environments. J Chem Theory Comput 2016; 12:706-13. [DOI: 10.1021/acs.jctc.5b01037] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Erte Xi
- Department of Chemical and
Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Richard C. Remsing
- Department of Chemical and
Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Amish J. Patel
- Department of Chemical and
Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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52
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Pluhařová E, Baer MD, Schenter GK, Jungwirth P, Mundy CJ. Dependence of the Rate of LiF Ion-Pairing on the Description of Molecular Interaction. J Phys Chem B 2015; 120:1749-58. [DOI: 10.1021/acs.jpcb.5b09344] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Eva Pluhařová
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nam. 2, 16610 Prague 6, Czech Republic
| | - Marcel D. Baer
- Physical
Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Gregory K. Schenter
- Physical
Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Pavel Jungwirth
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nam. 2, 16610 Prague 6, Czech Republic
| | - Christopher J. Mundy
- Physical
Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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53
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Slavchov RI, Dimitrova IM, Ivanov T. The polarized interface between quadrupolar insulators: Maxwell stress tensor, surface tension, and potential. J Chem Phys 2015; 143:154707. [DOI: 10.1063/1.4933370] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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54
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Zhong J, Zhao Y, Li L, Li H, Francisco JS, Zeng XC. Interaction of the NH2 Radical with the Surface of a Water Droplet. J Am Chem Soc 2015; 137:12070-8. [DOI: 10.1021/jacs.5b07354] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jie Zhong
- Department
of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Yu Zhao
- Department
of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Lei Li
- Department
of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Hui Li
- Institute
of Physics, Chinese Academy of Sciences, Beijing, 100080, China
| | - Joseph S. Francisco
- Department
of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Xiao Cheng Zeng
- Department
of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
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55
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Dinpajooh M, Matyushov DV. Free energy of ion hydration: Interface susceptibility and scaling with the ion size. J Chem Phys 2015; 143:044511. [DOI: 10.1063/1.4927570] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Mohammadhasan Dinpajooh
- Department of Chemistry & Biochemistry, Arizona State University, P.O. Box 871504, Tempe, Arizona 85287, USA
| | - Dmitry V. Matyushov
- Department of Physics and Department of Chemistry & Biochemistry, Arizona State University, P.O. Box 871504, Tempe, Arizona 85287, USA
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56
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Cendagorta JR, Ichiye T. The Surface Potential of the Water–Vapor Interface from Classical Simulations. J Phys Chem B 2015; 119:9114-22. [DOI: 10.1021/jp508878v] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Joseph R. Cendagorta
- Department
of Chemistry, Georgetown University, Washington, DC 20057, United States
| | - Toshiko Ichiye
- Department
of Chemistry, Georgetown University, Washington, DC 20057, United States
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57
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Abstract
The network of hydrogen bonds characteristic of bulk water is significantly disturbed at the protein-water interface, where local fields induce mutually frustrated dipolar domains with potentially novel structure and dynamics. Here the dipolar susceptibility of hydration shells of lysozyme is studied by molecular dynamics simulations in a broad range of temperatures, 140-300 K. The real part of the susceptibility passes through a broad maximum as a function of temperature. The maximum shifts to higher temperatures with increasing frequency of the dielectric experiment. This phenomenology is consistent with that reported for bulk relaxor ferroelectrics, where it is related to the formation of dipolar nanodomains. Nanodomains in the hydration shell extend 12-15 Å from the protein surface into the bulk. Their dynamics are significantly slower than the dynamics of bulk water. The domains dynamically freeze into a ferroelectric glass below 160 K, at which point the Arrhenius plot of the dipolar relaxation time becomes significantly steeper.
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58
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Beck TL. A real-space stochastic density matrix approach for density functional electronic structure. Phys Chem Chem Phys 2015; 17:31472-9. [DOI: 10.1039/c5cp01222h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel stochastic approach aimed at solving for the ground-state one-particle density matrix in density functional theory is developed.
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Affiliation(s)
- Thomas L. Beck
- Departments of Chemistry and Physics
- University of Cincinnati
- Cincinnati
- USA
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59
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Tan ML, Cendagorta JR, Ichiye T. The molecular charge distribution, the hydration shell, and the unique properties of liquid water. J Chem Phys 2014; 141:244504. [DOI: 10.1063/1.4904263] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Ming-Liang Tan
- Department of Chemistry, Georgetown University, Washington DC 20057, USA
| | | | - Toshiko Ichiye
- Department of Chemistry, Georgetown University, Washington DC 20057, USA
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60
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Remsing RC, Weeks JD. Hydrophobicity Scaling of Aqueous Interfaces by an Electrostatic Mapping. J Phys Chem B 2014; 119:9268-77. [DOI: 10.1021/jp509903n] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Richard C. Remsing
- Institute
for Physical Science and Technology, Department of Chemistry and Biochemistry,
and Chemical Physics Program, University of Maryland, College Park, Maryland 20742, United States
- Department
of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - John D. Weeks
- Institute
for Physical Science and Technology, Department of Chemistry and Biochemistry,
and Chemical Physics Program, University of Maryland, College Park, Maryland 20742, United States
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61
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Pollard TP, Beck TL. The thermodynamics of proton hydration and the electrochemical surface potential of water. J Chem Phys 2014; 141:18C512. [DOI: 10.1063/1.4896217] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Travis P. Pollard
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - Thomas L. Beck
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, USA
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
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