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- Title
Rare-Earth Fluorite-like Li 0.42 La 4.58 Mo 3 O 15.76±δ F 0.42±ε Molybdates: Crystal Growth and Atomic Structure.
- Authors
Orlova, Ekaterina I.; Sorokin, Timofei A.; Kvartalov, Vladimir B.; Antipin, Alexander M.; Novikova, Nataliya E.; Kharitonova, Elena P.; Sorokina, Nataliya I.; Alekseeva, Olga A.; Voronkova, Valentina I.
- Abstract
Rare-earth fluorine-containing molybdates of the Ln5Mo3O16+δ oxygen–electron conductor family with the LiLa4Mo3O15F composition were synthesized for the first time as single crystals by the flux method. An accurate X-ray diffraction analysis of the obtained crystals was carried out at 20 and −183 °C. The LiLa4Mo3O15F compound is isostructural to the fluorine-free analogue with a cubic structure (space group Pn 3 ¯ n). It is shown that lithium atoms replace one of the two positions of lanthanum in the more distorted LaO8 polyhedron. According to X-ray diffraction analysis, fluorine atoms replace the positions of over-stoichiometric oxygen located in the vast cavities of the structure. So, fluorine anions can promote the interstitial conductivity of F-containing LiLa4Mo3O15F molybdates.
- Subjects
CRYSTAL growth; ATOMIC structure; MOLYBDATES; FAMILY structure; MOLYBDENUM; SINGLE crystals
- Publication
Crystals (2073-4352), 2023, Vol 13, Issue 7, p1009
- ISSN
2073-4352
- Publication type
Article
- DOI
10.3390/cryst13071009