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Chodkiewicz ML, Gajda R, Lavina B, Tkachev S, Prakapenka VB, Dera P, Wozniak K. Accurate crystal structure of ice VI from X-ray diffraction with Hirshfeld atom refinement. IUCRJ 2022; 9:573-579. [PMID: 36071798 PMCID: PMC9438488 DOI: 10.1107/s2052252522006662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Abstract
Water is an essential chemical compound for living organisms, and twenty of its different crystal solid forms (ices) are known. Still, there are many fundamental problems with these structures such as establishing the correct positions and thermal motions of hydrogen atoms. The list of ice structures is not yet complete as DFT calculations have suggested the existence of additional and - to date - unknown phases. In many ice structures, neither neutron diffraction nor DFT calculations nor X-ray diffraction methods can easily solve the problem of hydrogen atom disorder or accurately determine their anisotropic displacement parameters (ADPs). Here, accurate crystal structures of H2O, D2O and mixed (50%H2O/50%D2O) ice VI obtained by Hirshfeld atom refinement (HAR) of high-pressure single-crystal synchrotron and laboratory X-ray diffraction data are presented. It was possible to obtain O-H/D bond lengths and ADPs for disordered hydrogen atoms which are in good agreement with the corresponding single-crystal neutron diffraction data. These results show that HAR combined with X-ray diffraction can compete with neutron diffraction in detailed studies of polymorphic forms of ice and crystals of other hydrogen-rich compounds. As neutron diffraction is relatively expensive, requires larger crystals which can be difficult to obtain and access to neutron facilities is restricted, cheaper and more accessible X-ray measurements combined with HAR can facilitate the verification of the existing ice polymorphs and the quest for new ones.
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Affiliation(s)
- Michal L. Chodkiewicz
- Biological and Chemical Research Centre, Department of Chemistry, University of Warsaw, Żwirki i Wigury, Warszawa 02-089, Poland
| | - Roman Gajda
- Biological and Chemical Research Centre, Department of Chemistry, University of Warsaw, Żwirki i Wigury, Warszawa 02-089, Poland
| | - Barbara Lavina
- Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439, USA
| | - Sergey Tkachev
- Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439, USA
| | - Vitali B. Prakapenka
- Hawai’i Institute of Geophysics and Planetology, Université d’hawaï à mānoa, 1680 East-West Road, Honolulu, HI 96822, USA
| | - Przemyslaw Dera
- Hawai’i Institute of Geophysics and Planetology, Université d’hawaï à mānoa, 1680 East-West Road, Honolulu, HI 96822, USA
| | - Krzysztof Wozniak
- Biological and Chemical Research Centre, Department of Chemistry, University of Warsaw, Żwirki i Wigury, Warszawa 02-089, Poland
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Xu J, Liu J, Liu J, Hu W, He X, Li J. Phase Transition of Ice at High Pressures and Low Temperatures. Molecules 2020; 25:molecules25030486. [PMID: 31979295 PMCID: PMC7037513 DOI: 10.3390/molecules25030486] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 01/08/2020] [Accepted: 01/21/2020] [Indexed: 11/21/2022] Open
Abstract
The behavior of ice under extreme conditions undergoes the change of intermolecular binding patterns and leads to the structural phase transitions, which are needed for modeling the convection and internal structure of the giant planets and moons of the solar system as well as H2O-rich exoplanets. Such extreme conditions limit the structural explorations in laboratory but open a door for the theoretical study. The ice phases IX and XIII are located in the high pressure and low temperature region of the phase diagram. However, to the best of our knowledge, the phase transition boundary between these two phases is still not clear. In this work, based on the second-order Møller–Plesset perturbation (MP2) theory, we theoretically investigate the ice phases IX and XIII and predict their structures, vibrational spectra and Gibbs free energies at various extreme conditions, and for the first time confirm that the phase transition from ice IX to XIII can occur around 0.30 GPa and 154 K. The proposed work, taking into account the many-body electrostatic effect and the dispersion interactions from the first principles, opens up the possibility of completing the ice phase diagram and provides an efficient method to explore new phases of molecular crystals.
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Affiliation(s)
- Jinjin Xu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China;
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Key laboratory for Thin Film and Microfabrication of the Ministry of Education, Department of Micro/Nano-electronics, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jinfeng Liu
- State Key Laboratory of Natural Medicines, Department of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China;
| | - Jinyun Liu
- Key Laboratory of Functional Molecular Solids of the Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
- Correspondence: (J.L.); (X.H.); (J.L.)
| | - Wenxin Hu
- The Computer Center, School of Computer Science and Software Engineering, East China Normal University, Shanghai 200062, China;
| | - Xiao He
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China;
- NYU-ECNU Center for Computational Chemistry at NYU Shanghai, Shanghai 200062, China
- Correspondence: (J.L.); (X.H.); (J.L.)
| | - Jinjin Li
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Key laboratory for Thin Film and Microfabrication of the Ministry of Education, Department of Micro/Nano-electronics, Shanghai Jiao Tong University, Shanghai 200240, China
- Key Laboratory of Functional Molecular Solids of the Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
- Correspondence: (J.L.); (X.H.); (J.L.)
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3
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Sun Y, Wang J, Guo J, Zu Q, Huang J, Peng Q. Atomic-scale oxidation mechanisms of single-crystal magnesium. NANOSCALE 2019; 11:23346-23356. [PMID: 31793607 DOI: 10.1039/c9nr07265a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Understanding the oxidation process of active metals plays a crucial role in improving their mechanical/oxidation properties. Using in situ environmental transmission electron microscopy and density-functional theory, we firstly clarify the oxidation process of single-crystal Mg at the atomic scale by using a new double-hole technique. A unique incipient interval-layered oxidation mechanism of single-crystal Mg has been confirmed, in which O atoms intercalate through the clean (21[combining macron]1[combining macron]0) surface into the alternate-layered tetrahedral sites, forming a metastable HCP-type MgO0.5 structure. Upon the increased incorporation of oxygen at the neighboring interstitial sites, the HCP-type Mg-O tetrahedron structure sharply transforms into the FCC-type MgO oxide. In addition, a typical anisotropic growth mechanism of oxides has been identified, wherein it involves two routes: the epitaxial growth of the MgO layer and the inward migration of the MgO/Mg interface. The whole oxidation rate of single-crystal Mg is mostly determined by the inward migration rate of the MgO/Mg interface, which is about six times higher than that of the epitaxial growth rate of the MgO layer along the same orientation planes. Moreover, the inward migration rate of the (020)MgO‖(011[combining macron]0)Mg interface is about twice as large as that of the (200)MgO‖(0002)Mg interface. This continuous oxide growth is mainly related to the defects in the MgO layer, which builds effective channels for the diffusion of O and Mg atoms. The in situ double-hole observations together with theoretical calculations provide a potential trajectory to probe the oxidation fundamentals of other active metals.
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Affiliation(s)
- Yong Sun
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China.
| | - Jinming Wang
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China.
| | - Jianxin Guo
- Hebei Provincial Key Lab of Optoelectronic Information Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, China
| | - Qun Zu
- School of Mechanical Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Jianyu Huang
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China.
| | - Qiuming Peng
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China.
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4
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Zheng L, Chen M, Sun Z, Ko HY, Santra B, Dhuvad P, Wu X. Structural, electronic, and dynamical properties of liquid water by ab initio molecular dynamics based on SCAN functional within the canonical ensemble. J Chem Phys 2018; 148:164505. [DOI: 10.1063/1.5023611] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Lixin Zheng
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - Mohan Chen
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - Zhaoru Sun
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - Hsin-Yu Ko
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA
| | - Biswajit Santra
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA
| | - Pratikkumar Dhuvad
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - Xifan Wu
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
- Institute for Computational Molecular Science, Temple University, Philadelphia, Pennsylvania 19122, USA
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5
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Liu Y, Ojamäe L. Raman and IR Spectra of Ice Ih and Ice XI with an Assessment of DFT Methods. J Phys Chem B 2016; 120:11043-11051. [PMID: 27690444 DOI: 10.1021/acs.jpcb.6b07001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
IR and Raman spectroscopic technology can be directly used to identify the occurrence of ferroelectric ice XI in laboratory or extraterrestrial settings. The performance of 16 different DFT methods applied on the ice Ih, VIII, IX, and XI crystal phases is evaluated. Based on a selected DFT computational scheme, the IR and Raman spectra of ice Ih and XI are derived and compared. When the spectra, both IR and Raman, of ice Ih and ice XI are compared, the librational vibrations are found to be the most affected by the proton ordering. The spectroscopic fingerprint of ice XI can be used to distinguish ferroelectric ice XI from ice Ih in the universe. Furthermore, the existence of only one kind of H-bond in ice Ih is demonstrated from the overlapping subspectra for different types of H-bonded pair configurations in 16 isomers of ice Ih, which provides an illustration to the historic debate on whether one or two kinds of H-bonds existed in ice.
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Affiliation(s)
- Yuan Liu
- Department of Chemistry, IFM, Linköping University , SE-581 83 Linköping, Sweden
| | - Lars Ojamäe
- Department of Chemistry, IFM, Linköping University , SE-581 83 Linköping, Sweden
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6
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Gillan MJ, Alfè D, Michaelides A. Perspective: How good is DFT for water? J Chem Phys 2016; 144:130901. [DOI: 10.1063/1.4944633] [Citation(s) in RCA: 478] [Impact Index Per Article: 59.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Michael J. Gillan
- London Centre for Nanotechnology, Gordon St., London WC1H 0AH, United Kingdom
- Thomas Young Centre, University College London, London WC1H 0AH, United Kingdom
- Department of Physics and Astronomy, University College London, London WC1E 6BT, United Kingdom
| | - Dario Alfè
- London Centre for Nanotechnology, Gordon St., London WC1H 0AH, United Kingdom
- Thomas Young Centre, University College London, London WC1H 0AH, United Kingdom
- Department of Physics and Astronomy, University College London, London WC1E 6BT, United Kingdom
- Department of Earth Sciences, University College London, London WC1E 6BT, United Kingdom
| | - Angelos Michaelides
- London Centre for Nanotechnology, Gordon St., London WC1H 0AH, United Kingdom
- Thomas Young Centre, University College London, London WC1H 0AH, United Kingdom
- Department of Physics and Astronomy, University College London, London WC1E 6BT, United Kingdom
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7
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Brandenburg JG, Maas T, Grimme S. Benchmarking DFT and semiempirical methods on structures and lattice energies for ten ice polymorphs. J Chem Phys 2016; 142:124104. [PMID: 25833562 DOI: 10.1063/1.4916070] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Water in different phases under various external conditions is very important in bio-chemical systems and for material science at surfaces. Density functional theory methods and approximations thereof have to be tested system specifically to benchmark their accuracy regarding computed structures and interaction energies. In this study, we present and test a set of ten ice polymorphs in comparison to experimental data with mass densities ranging from 0.9 to 1.5 g/cm(3) and including explicit corrections for zero-point vibrational and thermal effects. London dispersion inclusive density functionals at the generalized gradient approximation (GGA), meta-GGA, and hybrid level as well as alternative low-cost molecular orbital methods are considered. The widely used functional of Perdew, Burke and Ernzerhof (PBE) systematically overbinds and overall provides inconsistent results. All other tested methods yield reasonable to very good accuracy. BLYP-D3(atm) gives excellent results with mean absolute errors for the lattice energy below 1 kcal/mol (7% relative deviation). The corresponding optimized structures are very accurate with mean absolute relative deviations (MARDs) from the reference unit cell volume below 1%. The impact of Axilrod-Teller-Muto (atm) type three-body dispersion and of non-local Fock exchange is small but on average their inclusion improves the results. While the density functional tight-binding model DFTB3-D3 performs well for low density phases, it does not yield good high density structures. As low-cost alternative for structure related problems, we recommend the recently introduced minimal basis Hartree-Fock method HF-3c with a MARD of about 3%.
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Affiliation(s)
- Jan Gerit Brandenburg
- Mulliken Center for Theoretical Chemistry, Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms Universität Bonn, Beringstraße 4, 53115 Bonn, Germany
| | - Tilo Maas
- Mulliken Center for Theoretical Chemistry, Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms Universität Bonn, Beringstraße 4, 53115 Bonn, Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry, Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms Universität Bonn, Beringstraße 4, 53115 Bonn, Germany
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8
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Li W, Ni Z, Li S. Cluster-in-molecule local correlation method for post-Hartree–Fock calculations of large systems. Mol Phys 2016. [DOI: 10.1080/00268976.2016.1139755] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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9
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Lin TJ, Hsing CR, Wei CM, Kuo JL. Structure prediction of the solid forms of methanol: an ab initio random structure searching approach. Phys Chem Chem Phys 2016; 18:2736-46. [DOI: 10.1039/c5cp06583f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Liquid methanol and methanol clusters have been comprehensively studied to reveal their local structure and hydrogen bond networks.
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Affiliation(s)
- Tzu-Jen Lin
- Institute of Atomic and Molecular Sciences
- Academic Sinica
- Taipei
- Taiwan
| | - Cheng-Rong Hsing
- Institute of Atomic and Molecular Sciences
- Academic Sinica
- Taipei
- Taiwan
| | - Ching-Ming Wei
- Institute of Atomic and Molecular Sciences
- Academic Sinica
- Taipei
- Taiwan
| | - Jer-Lai Kuo
- Institute of Atomic and Molecular Sciences
- Academic Sinica
- Taipei
- Taiwan
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10
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Structural Properties of Liquid Water and Ice Ih from Ab-Initio Molecular Dynamics with a Non-Local Correlation Functional. ENERGIES 2015. [DOI: 10.3390/en8099383] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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11
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Bankura A, Santra B, DiStasio RA, Swartz CW, Klein ML, Wu X. A systematic study of chloride ion solvation in water using van der Waals inclusive hybrid density functional theory. Mol Phys 2015. [DOI: 10.1080/00268976.2015.1059959] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Arindam Bankura
- Institute for Computational Molecular Science and Department of Chemistry, Temple University , Philadelphia, PA, USA
| | - Biswajit Santra
- Department of Chemistry, Princeton University , Princeton, NJ, USA
| | | | - Charles W. Swartz
- Institute for Computational Molecular Science and Department of Chemistry, Temple University , Philadelphia, PA, USA
| | - Michael L. Klein
- Institute for Computational Molecular Science and Department of Chemistry, Temple University , Philadelphia, PA, USA
| | - Xifan Wu
- Department of Physics, Temple University , Philadelphia, PA, USA
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12
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DiStasio RA, Santra B, Li Z, Wu X, Car R. The individual and collective effects of exact exchange and dispersion interactions on the ab initio structure of liquid water. J Chem Phys 2015; 141:084502. [PMID: 25173016 DOI: 10.1063/1.4893377] [Citation(s) in RCA: 183] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In this work, we report the results of a series of density functional theory (DFT) based ab initio molecular dynamics (AIMD) simulations of ambient liquid water using a hierarchy of exchange-correlation (XC) functionals to investigate the individual and collective effects of exact exchange (Exx), via the PBE0 hybrid functional, non-local van der Waals/dispersion (vdW) interactions, via a fully self-consistent density-dependent dispersion correction, and an approximate treatment of nuclear quantum effects, via a 30 K increase in the simulation temperature, on the microscopic structure of liquid water. Based on these AIMD simulations, we found that the collective inclusion of Exx and vdW as resulting from a large-scale AIMD simulation of (H2O)128 significantly softens the structure of ambient liquid water and yields an oxygen-oxygen structure factor, SOO(Q), and corresponding oxygen-oxygen radial distribution function, gOO(r), that are now in quantitative agreement with the best available experimental data. This level of agreement between simulation and experiment demonstrated herein originates from an increase in the relative population of water molecules in the interstitial region between the first and second coordination shells, a collective reorganization in the liquid phase which is facilitated by a weakening of the hydrogen bond strength by the use of a hybrid XC functional, coupled with a relative stabilization of the resultant disordered liquid water configurations by the inclusion of non-local vdW/dispersion interactions. This increasingly more accurate description of the underlying hydrogen bond network in liquid water also yields higher-order correlation functions, such as the oxygen-oxygen-oxygen triplet angular distribution, POOO(θ), and therefore the degree of local tetrahedrality, as well as electrostatic properties, such as the effective molecular dipole moment, that are in much better agreement with experiment.
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Affiliation(s)
- Robert A DiStasio
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA
| | - Biswajit Santra
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA
| | - Zhaofeng Li
- Department of Physics, Princeton University, Princeton, New Jersey 08544, USA
| | - Xifan Wu
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - Roberto Car
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA
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13
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Shamp A, Saitta P, Zurek E. Theoretical predictions of novel potassium chloride phases under pressure. Phys Chem Chem Phys 2015; 17:12265-72. [PMID: 25891957 DOI: 10.1039/c5cp00470e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Above 350 GPa KCl assumes an hcp lattice that is reminiscent of the isoelectronic noble gas Ar.
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Affiliation(s)
- Andrew Shamp
- Department of Chemistry
- State University of New York at Buffalo
- Buffalo
- USA
| | - Patrick Saitta
- Department of Chemistry
- State University of New York at Buffalo
- Buffalo
- USA
| | - Eva Zurek
- Department of Chemistry
- State University of New York at Buffalo
- Buffalo
- USA
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14
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Fang T, Li W, Gu F, Li S. Accurate Prediction of Lattice Energies and Structures of Molecular Crystals with Molecular Quantum Chemistry Methods. J Chem Theory Comput 2014; 11:91-8. [DOI: 10.1021/ct500833k] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Tao Fang
- School of Chemistry and Chemical
Engineering, Key Laboratory of Mesoscopic Chemistry of Ministry of
Education, Institute of Theoretical and Computational Chemistry, Nanjing University, Nanjing, 210093, People’s Republic of China
| | - Wei Li
- School of Chemistry and Chemical
Engineering, Key Laboratory of Mesoscopic Chemistry of Ministry of
Education, Institute of Theoretical and Computational Chemistry, Nanjing University, Nanjing, 210093, People’s Republic of China
| | - Fangwei Gu
- School of Chemistry and Chemical
Engineering, Key Laboratory of Mesoscopic Chemistry of Ministry of
Education, Institute of Theoretical and Computational Chemistry, Nanjing University, Nanjing, 210093, People’s Republic of China
| | - Shuhua Li
- School of Chemistry and Chemical
Engineering, Key Laboratory of Mesoscopic Chemistry of Ministry of
Education, Institute of Theoretical and Computational Chemistry, Nanjing University, Nanjing, 210093, People’s Republic of China
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15
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Alfè D, Bartók AP, Csányi G, Gillan MJ. Analyzing the errors of DFT approximations for compressed water systems. J Chem Phys 2014; 141:014104. [DOI: 10.1063/1.4885440] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- D. Alfè
- Department of Earth Sciences, UCL, London WC1E 6BT, United Kingdom
- London Centre for Nanotechnology, UCL, London WC1H 0AH, United Kingdom
- Thomas Young Centre, UCL, London WC1H 0AH, United Kingdom
- Department of Physics and Astronomy, UCL, London WC1E 6BT, United Kingdom
| | - A. P. Bartók
- Department of Engineering, University of Cambridge, Cambridge CB2 1PZ, United Kingdom
| | - G. Csányi
- Department of Engineering, University of Cambridge, Cambridge CB2 1PZ, United Kingdom
| | - M. J. Gillan
- London Centre for Nanotechnology, UCL, London WC1H 0AH, United Kingdom
- Thomas Young Centre, UCL, London WC1H 0AH, United Kingdom
- Department of Physics and Astronomy, UCL, London WC1E 6BT, United Kingdom
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16
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Gillan MJ, Alfè D, Bartók AP, Csányi G. First-principles energetics of water clusters and ice: A many-body analysis. J Chem Phys 2013; 139:244504. [DOI: 10.1063/1.4852182] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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17
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Santra B, Klimeš J, Tkatchenko A, Alfè D, Slater B, Michaelides A, Car R, Scheffler M. On the accuracy of van der Waals inclusive density-functional theory exchange-correlation functionals for ice at ambient and high pressures. J Chem Phys 2013; 139:154702. [DOI: 10.1063/1.4824481] [Citation(s) in RCA: 110] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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18
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Alfè D, Bartók AP, Csányi G, Gillan MJ. Communication: Energy benchmarking with quantum Monte Carlo for water nano-droplets and bulk liquid water. J Chem Phys 2013; 138:221102. [DOI: 10.1063/1.4810882] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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19
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Yedukondalu N, Ghule VD, Vaitheeswaran G. Pressure induced structural phase transition in solid oxidizer KClO3: A first-principles study. J Chem Phys 2013; 138:174701. [DOI: 10.1063/1.4802722] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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