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Yin Y, Akbar FI, Bykova E, Aslandukova A, Laniel D, Aslandukov A, Bykov M, Hanfland M, Garbarino G, Jia Z, Dubrovinsky L, Dubrovinskaia N. Synthesis of rare-earth metal compounds through enhanced reactivity of alkali halides at high pressures. Commun Chem 2022; 5:122. [PMID: 36697723 PMCID: PMC9814685 DOI: 10.1038/s42004-022-00736-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 09/19/2022] [Indexed: 01/28/2023] Open
Abstract
Chemical stability of the alkali halides NaCl and KCl has allowed for their use as inert media in high-pressure high-temperature experiments. Here we demonstrate the unexpected reactivity of the halides with metals (Y, Dy, and Re) and iron oxide (FeO) in a laser-heated diamond anvil cell, thus providing a synthetic route for halogen-containing binary and ternary compounds. So far unknown chlorides, Y2Cl and DyCl, and chloride carbides, Y2ClC and Dy2ClC, were synthesized at ~40 GPa and 2000 K and their structures were solved and refined using in situ single-crystal synchrotron X-ray diffraction. Also, FeCl2 with the HP-PdF2-type structure, previously reported at 108 GPa, was synthesized at ~160 GPa and 2100 K. The results of our ab initio calculations fully support experimental findings and reveal the electronic structure and chemical bonding in these compounds.
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Affiliation(s)
- Yuqing Yin
- grid.7384.80000 0004 0467 6972Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440 Bayreuth, Germany ,grid.27255.370000 0004 1761 1174State Key Laboratory of Crystal Materials, Shandong University, 250100 Jinan, China
| | - Fariia I. Akbar
- grid.7384.80000 0004 0467 6972Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440 Bayreuth, Germany ,grid.7384.80000 0004 0467 6972Bayerisches Geoinstitut, University of Bayreuth, 95440 Bayreuth, Germany
| | - Elena Bykova
- grid.7384.80000 0004 0467 6972Bayerisches Geoinstitut, University of Bayreuth, 95440 Bayreuth, Germany ,grid.418276.e0000 0001 2323 7340Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC 20015 USA
| | - Alena Aslandukova
- grid.7384.80000 0004 0467 6972Bayerisches Geoinstitut, University of Bayreuth, 95440 Bayreuth, Germany
| | - Dominique Laniel
- grid.4305.20000 0004 1936 7988Centre for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, UK
| | - Andrey Aslandukov
- grid.7384.80000 0004 0467 6972Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440 Bayreuth, Germany ,grid.7384.80000 0004 0467 6972Bayerisches Geoinstitut, University of Bayreuth, 95440 Bayreuth, Germany
| | - Maxim Bykov
- grid.6190.e0000 0000 8580 3777Institute of Inorganic Chemistry, University of Cologne, 50939 Cologne, Germany
| | - Michael Hanfland
- grid.5398.70000 0004 0641 6373European Synchrotron Radiation Facility, F-38043 Grenoble, France
| | - Gaston Garbarino
- grid.5398.70000 0004 0641 6373European Synchrotron Radiation Facility, F-38043 Grenoble, France
| | - Zhitai Jia
- grid.27255.370000 0004 1761 1174State Key Laboratory of Crystal Materials, Shandong University, 250100 Jinan, China
| | - Leonid Dubrovinsky
- grid.7384.80000 0004 0467 6972Bayerisches Geoinstitut, University of Bayreuth, 95440 Bayreuth, Germany
| | - Natalia Dubrovinskaia
- grid.7384.80000 0004 0467 6972Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440 Bayreuth, Germany ,grid.5640.70000 0001 2162 9922Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83 Linköping, Sweden
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Koemets E, Leonov I, Bykov M, Bykova E, Chariton S, Aprilis G, Fedotenko T, Clément S, Rouquette J, Haines J, Cerantola V, Glazyrin K, McCammon C, Prakapenka VB, Hanfland M, Liermann HP, Svitlyk V, Torchio R, Rosa AD, Irifune T, Ponomareva AV, Abrikosov IA, Dubrovinskaia N, Dubrovinsky L. Revealing the Complex Nature of Bonding in the Binary High-Pressure Compound FeO_{2}. PHYSICAL REVIEW LETTERS 2021; 126:106001. [PMID: 33784165 DOI: 10.1103/physrevlett.126.106001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 12/07/2020] [Accepted: 01/07/2021] [Indexed: 06/12/2023]
Abstract
Extreme pressures and temperatures are known to drastically affect the chemistry of iron oxides, resulting in numerous compounds forming homologous series nFeOmFe_{2}O_{3} and the appearance of FeO_{2}. Here, based on the results of in situ single-crystal x-ray diffraction, Mössbauer spectroscopy, x-ray absorption spectroscopy, and density-functional theory+dynamical mean-field theory calculations, we demonstrate that iron in high-pressure cubic FeO_{2} and isostructural FeO_{2}H_{0.5} is ferric (Fe^{3+}), and oxygen has a formal valence less than 2. Reduction of oxygen valence from 2, common for oxides, down to 1.5 can be explained by a formation of a localized hole at oxygen sites.
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Affiliation(s)
- E Koemets
- Bayerisches Geoinstitut, University of Bayreuth, D-95440 Bayreuth, Germany
- Institut Charles Gerhardt Montpellier (UMR CNRS 5253), Université de Montpellier, F-34095 Montpellier Cedex 5, France
| | - I Leonov
- Institute of Metal Physics, Sofia Kovalevskaya Street 18, 620219 Yekaterinburg GSP-170, Russia
- Materials Modeling and Development Laboratory, NUST "MISIS", 119049 Moscow, Russia
- Ural Federal University, 620002 Yekaterinburg, Russia
| | - M Bykov
- Bayerisches Geoinstitut, University of Bayreuth, D-95440 Bayreuth, Germany
| | - E Bykova
- Bayerisches Geoinstitut, University of Bayreuth, D-95440 Bayreuth, Germany
- Carnegie Institution of Washington, Earth and Planets Laboratory, 5241 Broad Branch Road NW, Washington, DC 20015, USA
| | - S Chariton
- Bayerisches Geoinstitut, University of Bayreuth, D-95440 Bayreuth, Germany
| | - G Aprilis
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, Universität Bayreuth, D-95440 Bayreuth, Germany
- The European Synchrotron Radiation Facility, 38043 Grenoble Cedex 9, France
| | - T Fedotenko
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, Universität Bayreuth, D-95440 Bayreuth, Germany
| | - S Clément
- Laboratoire Charles Coulomb (L2C)-UMR CNRS 5221, Université de Montpellier, CC069, 34095 Montpellier, France
| | - J Rouquette
- Institut Charles Gerhardt Montpellier (UMR CNRS 5253), Université de Montpellier, F-34095 Montpellier Cedex 5, France
| | - J Haines
- Institut Charles Gerhardt Montpellier (UMR CNRS 5253), Université de Montpellier, F-34095 Montpellier Cedex 5, France
| | - V Cerantola
- The European Synchrotron Radiation Facility, 38043 Grenoble Cedex 9, France
| | - K Glazyrin
- Photon Science, Deutsches Elektronen-Synchrotron, D-22607 Hamburg, Germany
| | - C McCammon
- Bayerisches Geoinstitut, University of Bayreuth, D-95440 Bayreuth, Germany
| | - V B Prakapenka
- Center for Advanced Radiation Sources, University of Chicago, Chicago, Illinois 60437, USA
| | - M Hanfland
- The European Synchrotron Radiation Facility, 38043 Grenoble Cedex 9, France
| | - H-P Liermann
- Photon Science, Deutsches Elektronen-Synchrotron, D-22607 Hamburg, Germany
| | - V Svitlyk
- The European Synchrotron Radiation Facility, 38043 Grenoble Cedex 9, France
| | - R Torchio
- The European Synchrotron Radiation Facility, 38043 Grenoble Cedex 9, France
| | - A D Rosa
- The European Synchrotron Radiation Facility, 38043 Grenoble Cedex 9, France
| | - T Irifune
- Geodynamics Research Center, Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - A V Ponomareva
- Materials Modeling and Development Laboratory, NUST "MISIS", 119049 Moscow, Russia
| | - I A Abrikosov
- Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83 Linköping, Sweden
| | - N Dubrovinskaia
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, Universität Bayreuth, D-95440 Bayreuth, Germany
- Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83 Linköping, Sweden
| | - L Dubrovinsky
- Bayerisches Geoinstitut, University of Bayreuth, D-95440 Bayreuth, Germany
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