Crystal structures of La3ZrSb5, La3HfSb5, and LaCrSb3. Structural relationships in ternary rare-earth antimonides
Creators
- 1. Alberta Univ., Edmonton, AB (Canada). Dept. of Chemistry
Description
The crystal structures of the ternary rare-earth antimonides La3ZrSb5, La3HfSb5, and LaCrSb3 have been determined from single-crystal X-ray data (La3ZrSb5: P63/mcm, Z=2, a=9.5743(9) A, c=6.3495(7) A, V=504.1(1) A3, T=-60 C. La3HfSb5: P63/mcm, Z=2, a=9.557(2) A, c=6.3388(6) A, V=501.4(1) A3, T=-60 C. LaCrSb3: Pbcm, Z=4, a=13.2835(7) A, b=6.2127(2) A, c=6.116(1) A, V=504.8(1) A3, T=22 C.) The structure of La3MSb5 (M=Zr, Hf) consists of chains of Sb atoms and chains of face-sharing MSb6 octahedra, separated by La atoms. LaCrSb3 is isostructural to CeCrSb3, and consists of nearly square sheets of Sb atoms and layers of face- and edge-sharing CrSb6 octahedra, separated by the rare-earth atoms. The RECrSb3 series, previously shown to exist for RE=La, Ce, Pr, Nd, Sm, has now been extended to include RE=Gd, Tb, Dy. Structural relationships between various ternary rare-earth antimonides are drawn. (orig.)
Additional details
Publishing Information
- Journal Title
- Journal of Alloys and Compounds
- Journal Volume
- 249
- Journal Issue
- 1-2
- Series
- Proceedings. Pt. 1.
- Journal Page Range
- p. 191-198.
- ISSN
- 0925-8388
- CODEN
- JALCEU
Conference
- Title
- 21. rare earth research conference (RERC-21).
- Dates
- 7-12 Jul 1996.
- Place
- Duluth, MN (United States).
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Switzerland
- INIS RN
- 28060872
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ANTIMONY ALLOYS; BOND LENGTHS; CHROMIUM ALLOYS; CRYSTAL STRUCTURE; HAFNIUM ALLOYS; LANTHANUM ALLOYS; SYNTHESIS; TERNARY ALLOY SYSTEMS; X-RAY DIFFRACTION; ZIRCONIUM ALLOYS
- Descriptors DEC
- ALLOY SYSTEMS; ALLOYS; COHERENT SCATTERING; DIFFRACTION; RARE EARTH ALLOYS; SCATTERING; TRANSITION ELEMENT ALLOYS