Crystal structure of the oxygen conducting compound Nd5Mo3O16
Creators
- 1. Russian Academy of Sciences, Moscow (Russian Federation). Shubnikov Institute of Crystallography
- 2. Polish Academy of Sciences, Wroclaw (Poland). W. Trzebiatowski Institute of Low Temperature and Structure Research
- 3. Moscow State Univ., Moscow (Russian Federation)
Description
Structure of the Nd5Mo3O16 single crystal grown in the Nd2O3-MoO3 system was studied using the X-rays diffraction technique at 293 K and 110 K temperatures. The unit-cell values were always cubic relating to that of CaF2 fluorite as a ∼ 2af (af = 5.5 Aa). The structure was solved within the Pn anti 3n symmetry group. It was found that the Nd5Mo3O16 compound has a fluorite-like structure with all atoms disordered. An indirect confirmation for the violation of translational periodicity in the distribution of Mo and Nd atoms was obtained. The possible oxygen diffusion paths were analyzed using the one-particle potentials of the oxygen atoms. The ionic conductivity of Nd5Mo3O16 compound is associated with the disordering of the oxygen atoms in several positions, and their deficiency in comparison with the initial fluorite. (orig.)
Additional details
Publishing Information
- Journal Title
- Zeitschrift fuer Kristallographie. Crystalline Materials
- Journal Volume
- 227
- Journal Issue
- 12
- Journal Page Range
- p. 869-875
- ISSN
- 2194-4946
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 44014763
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CRYSTAL STRUCTURE; ELECTRON DENSITY; INTERATOMIC DISTANCES; MOLYBDENUM OXIDES; MONOCRYSTALS; NEODYMIUM OXIDES
- Descriptors DEC
- CHALCOGENIDES; CRYSTALS; DISTANCE; MOLYBDENUM COMPOUNDS; NEODYMIUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; REFRACTORY METAL COMPOUNDS; TRANSITION ELEMENT COMPOUNDS