Synthesis of rare-earth metal compounds through enhanced reactivity of alkali halides at high pressures

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00007143
URN to cite this document: urn:nbn:de:bvb:703-epub-7143-2

Title data

Yin, Yuqing ; Akbar, Fariia Iasmin ; Bykova, Elena ; Aslandukova, Alena ; Laniel, Dominique ; Aslandukov, Andrii ; Bykov, Maxim ; Hanfland, Michael ; Garbarino, Gaston ; Zhitai, Jia ; Dubrovinsky, Leonid ; Dubrovinskaia, Natalia:
Synthesis of rare-earth metal compounds through enhanced reactivity of alkali halides at high pressures.
In: Communications Chemistry. Vol. 5 (2022) . - No. 122.
ISSN 2399-3669
DOI der Verlagsversion: https://doi.org/10.1038/s42004-022-00736-x

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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.

Further data

Item Type:	Article in a journal
DDC Subjects:	500 Science > 530 Physics
Institutions of the University:	Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Professor Materials Physics and Technology at Extreme Conditions Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Professor Materials Physics and Technology at Extreme Conditions > Professor Materials Physics and Technology at Extreme Conditions - Univ.-Prof. Dr. Natalia Doubrovinckaia Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences
Language:	English
Originates at UBT:	Yes
URN:	urn:nbn:de:bvb:703-epub-7143-2
Date Deposited:	24 Jul 2023 06:27
Last Modified:	18 Mar 2024 07:48
URI:	https://epub.uni-bayreuth.de/id/eprint/7143

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