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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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