Samarium(III) fluoride
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Names | |
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IUPAC name
Samarium(III) fluoride
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Other names
Samarium trifluoride, Trifluorosamarium
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Identifiers | |
13765-24-7 ![]() |
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ChemSpider | 75536 ![]() |
EC Number | 237-367-3 |
Jmol 3D model | Interactive image |
PubChem | 83714 |
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Properties | |
SmF3 | |
Molar mass | 207.36 g/mol |
Appearance | Yellow odorless powder |
Density | 6.6 g/cm3 at 20 °C |
Melting point | 1,306 °C (2,383 °F; 1,579 K) |
Boiling point | 2,427 °C (4,401 °F; 2,700 K) |
Insoluble | |
Structure | |
Orthorombic, oP16, SpaceGroup = Pnma, No. 62 | |
Related compounds | |
Related compounds
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Samarium(II) fluoride Samarium(III) chloride Samarium(III) bromide Samarium(III) iodide |
Vapor pressure | {{{value}}} |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references | |
Samarium(III) fluoride (SmF3) is a slightly hygroscopic solid fluoride. At room temperature, it has orthorhombic structure with space group Pnma – β-YF3 type with lattice constants a = 666,9 pm, b = 705,9 pm, c = 440,5 pm. Above 495 °C, it has the rhombohedral LaF3 structure (space group P3cl) – with lattice constants a = 707, c = 724 pm.[1]
Conditions/substances to avoid are: open flame, moisture, strong acids.
References
- ↑ K Rotereau et al.: The high-temperature phase transition in samarium fluoride, SmF3: structural and vibrational investigation, J. Phys.: Condens. Matter, 1998, 10, 1431–1446, doi:10.1088/0953-8984/10/6/026.
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