%0 Journal Article
%A Akbar, Fariia Iasmin
%A Aslandukova, Alena
%A Aslandukov, Andrey
%A Yin, Yuqing
%A Trybel, Florian
%A Khandarkhaeva, Saiana
%A Fedotenko, Timofey
%A Laniel, Dominique
%A Bykov, Maxim
%A Bykova, Elena
%A Dubrovinskaia, Natalia
%A Dubrovinsky, Leonid
%T High-pressure synthesis of dysprosium carbides
%J Frontiers in Chemistry
%V 11
%@ 2296-2646
%C Lausanne
%I Frontiers Media
%M PUBDB-2023-05992
%P 1210081
%D 2023
%X Chemical reactions between dysprosium and carbon were studied in laser-heated diamond anvil cells at pressures of 19, 55, and 58 GPa and temperatures of ∼2500 K. In situ single-crystal synchrotron X-ray diffraction analysis of the reaction products revealed the formation of novel dysprosium carbides, Dy<sub>4</sub>C<sub>3</sub> and Dy<sub>3</sub>C<sub>2</sub>, and dysprosium sesquicarbide Dy<sub>2</sub>C<sub>3</sub> previously known only at ambient conditions. The structure of Dy<sub>4</sub>C<sub>3</sub> was found to be closely related to that of dysprosium sesquicarbide Dy<sub>2</sub>C<sub>3</sub> with the Pu<sub>2</sub>C<sub>3</sub>-type structure. Ab initio calculations reproduce well crystal structures of all synthesized phases and predict their compressional behavior in agreement with our experimental data. Our work gives evidence that high-pressure synthesis conditions enrich the chemistry of rare earth metal carbides.  
%F PUB:(DE-HGF)16
%9 Journal Article
%$ 37383952
%U <Go to ISI:>//WOS:001079510900001
%R 10.3389/fchem.2023.1210081
%U https://bib-pubdb1.desy.de/record/594852