High-pressure high-temperature preparation of CeGe3
Author:
Clark William P.1, Ueltzen Katharina1, Burkhardt Ulrich1, Akselrud Lev1, Grin Yuri1ORCID, Schwarz Ulrich1ORCID
Affiliation:
1. Max-Planck-Institut für Chemische Physik fester Stoffe , Nöthnitzer Straße 40 , 01187 Dresden , Germany
Abstract
Abstract
The metastable compound CeGe3 was obtained by high-pressure high-temperature synthesis from pre-reacted Ce and Ge at 3 GPa of pressure and 1873 K, with subsequent annealing over several hours at 1173 K. The product crystallises in a 2 × 2 × 2 superstructure of the cubic Cu3Au-type structure with space group
F
m
3
‾
m
$Fm\overline{3}m$
and a = 8.6970(2) Å. CeGe3 decomposes at 520(10) K into CeGe2−x
and elemental Ge.
Publisher
Walter de Gruyter GmbH
Subject
General Chemistry
Reference38 articles.
1. Zintl, E., Brauer, G. Phys. Chem. B 1933, 20, 245; https://doi.org/10.1515/zpch-1933-2023. 2. Zintl, E. Angew. Chem. 1939, 52, 1; https://doi.org/10.1002/ange.19390520102. 3. Schwarz, U., Wosylus, A., Rosner, H., Schnelle, W., Ormeci, A., Meier, K., Baranov, A., Nicklas, M., Leipe, S., Müller, C. J., Grin, Y. J. Am. Chem. Soc. 2012, 134, 13558; https://doi.org/10.1021/ja3055194. 4. Hübner, J.-M., Akselrud, L., Schnelle, W., Burkhardt, U., Bobnar, M., Prots, Y., Grin, Y., Schwarz, U. Materials 2019, 12, 145; https://doi.org/10.3390/ma12010145. 5. Meier, K., Cardoso-Gil, R., Schwarz, U. Z. Kristallogr. N. Cryst. Struct. 2011, 226, 297; https://doi.org/10.1524/ncrs.2011.0131.
|
|