Promethium(III) fluoride
| Promethium(III) fluoride | |
|---|---|
| Other names | Promethium trifluoride |
| Identifiers | |
| Standard InChI | InChI=1S/3FH.Pm/h3*1H;/q;;;+3/p-3 |
| Standard InChIKey | GBTXURQYFJSURZ-UHFFFAOYSA-K |
| CAS number | [] |
| Properties[1] | |
| Chemical formula | PmF3 |
| Molar mass | 203.91 g mol−1 [note 1] |
| Appearance | purple-pink solid |
| Melting point |
1338 °C |
| Structure[1][3] | |
| Crystal structure | Lanthanum trifluoride |
| Related compounds | |
| Other anions | Promethium(III) chloride Promethium(III) bromide Promethium(III) iodide |
| Other cations | Praseodymium(III) fluoride Neodymium(III) fluoride Samarium(III) fluoride Europium(III) fluoride |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
Promethium(III) fluoride, PmF3, is the only known fluoride of promethium. It is prepared (on a 100-µg scale) by reacting gaseous fluorine with promethium(III) oxide at 300 °C, and has the lanthanum trifluoride structure with eleven-coordinate promethium.[1]
Notes and references
Notes
- ↑ The molar mass is based on promethium-147 (t½ = 2.6234(2) a; Ar = 146.915 1385(26)),[2] the most commonly encountered isotope of promethium.
References
- ↑ 1.0 1.1 1.2 Cotton, Simon Lanthanide and Actinide Chemistry, 2nd ed.; Wiley: New York, 2006; pp 115–17. ISBN 0470010061.
- ↑ Audi, G.; Bersillon, O.; Blachot, J.; Wapstra, A. H. The NUBASE evaluation of nuclear and decay properties. Nucl. Phys. A 2003, 729, 3–128. doi:10.1016/j.nuclphysa.2003.11.001, <http://amdc.in2p3.fr/nubase/Nubase2003.pdf>.
- ↑ Wilmarth, W. R.; Haire, R. G.; Young, J. P.; Ramey, D. W.; Peterson, J. R. Absorption spectrophotometric and X-ray diffraction studies of the trihalides of promethium in the solid state. J. Less Common Met. 1988, 141 (2), 275–84. DOI: 10.1016/0022-5088(88)90413-4.
Further reading
- Wilmarth, W. R.; Begun, G. M.; Haire, R. G.; Peterson, J. R. Raman spectra of Pm2O3, PmF3, PmCl3, PmBr3 and PmI3. J. Raman Spectrosc. 1988, 19 (4), 271–75. DOI: 10.1002/jrs.1250190410.
- Gibson, J. K.; Haire, R. G. Vapor pressure of promethium trifluoride. Thermochim. Acta 1989, 140, 287–98. DOI: 10.1016/0040-6031(89)87310-1.
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