Promethium(III) fluoride

Promethium(III) fluoride or promethium trifluoride is the chemical compound of promethium and fluorine with the formula PmF₃.

Promethium(III) fluoride

Crystal structure
Names
IUPAC name Promethium(III) fluoride
Other names Promethium trifluoride
Identifiers
CAS Number	13709-45-0
3D model (JSmol)	Interactive image
InChI InChI=1S/Pm.3FH/h;3*1H/q+3;;;/p-3^Y
SMILES F[Pm](F)F
Properties
Chemical formula	PmF3
Molar mass	202 g/mol[1]
Appearance	pink solid[1]
Melting point	1338 °C [1]
Structure
Crystal structure	Rhombohedral, hR24
Space group	P3c1, No. 165[2]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Promethium(III) fluoride is sparingly soluble in water. It reacts with metallic lithium to yield lithium fluoride and metallic promethium:[3]

${\displaystyle \mathrm {PmF_{3}\ +\ 3\ Li\ \longrightarrow \ Pm\ +\ 3\ LiF} }$

References

1. Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nd ed.). Boca Raton, FL: CRC Press. p. 4.84. ISBN 1439855110.
2. Zachariasen, W. H. (1949). "Crystal chemical studies of the 5f-series of elements. XII. New compounds representing known structure types". Acta Crystallographica. 2 (6): 388. doi:10.1107/S0365110X49001016.
3. Weigel, F. (1963). "Darstellung von metallischem Promethium". Angewandte Chemie. 75 (10): 451. doi:10.1002/ange.19630751009.