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Updated: Jun 1, 2026
13:05
Enzymatic Synthesis of Epoxidized Metabolites of Docosahexaenoic, Eicosapentaenoic, and Arachidonic Acids
Published on: June 28, 2019
Redetermination of EuScO(3).
Summary
Single crystals of europium scandate (EuScO3) were grown and analyzed. The study revealed a defect-type structure with europium deficiency and oxygen vacancies, refining previous findings.
Area of Science:
- Solid State Chemistry
- Crystallography
- Materials Science
Background:
- Europium scandate (EuScO3) is a compound with a perovskite-type structure.
- Previous structural analysis was based on powder diffraction data.
Purpose of the Study:
- To grow single crystals of EuScO3 from the melt.
- To redetermine the crystal structure using single-crystal diffraction data.
- To precisely characterize structural and geometric parameters and identify defects.
Main Methods:
- Micro-pulling-down method for single crystal growth.
- Single-crystal X-ray diffraction for structural analysis.
- Site-occupancy refinement to determine defect concentrations.
Main Results:
- Single crystals of EuScO3 were successfully grown.
- The crystal structure was refined with improved precision.
- A defect-type structure was identified, characterized by europium deficiency at the A sites and oxygen vacancies.
Conclusions:
- The crystallochemical formula was refined to (□(0.032)Eu(0.968))ScO(2.952).
- The study provides a more accurate structural and geometric description of EuScO3.
- The findings highlight the presence of significant defects in the europium scandate structure.
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