Praseodymium monoselenide

Praseodymium monoselenide
Identifiers
CAS Number	12038-08-3^Y
3D model (JSmol)	Interactive image
ChemSpider	95747165
ECHA InfoCard	100.031.689
EC Number	234-872-0
CompTox Dashboard (EPA)	DTXSID5065198
InChI InChI=1S/Pr.Se Key: FAEQPLMETHVSSH-UHFFFAOYSA-N
SMILES [Pr].[Se]
Properties
Chemical formula	PrSe
Molar mass	219.87
Density	6.9 g/cm³
Melting point	2,100 °C (3,810 °F; 2,370 K)
Related compounds
Other anions	PrS PrTe
Other cations	CeSe NdSe
Related compounds	Pr₂Se₃
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Chemical compound

Praseodymium monoselenide is a compound with the chemical formula PrSe. It forms crystals.

Preparation

Praseodymium monoselenide can be prepared by directly reacting praseodymium and selenium at 2100 °C:^[1]

Pr + Se → PrSe

The temperature at which selenium and praseodymium start to react when they come into contact is 620 K.^[2]

Properties

Praseodymium monoselenide forms cubic crystals, space group Fm3m, unit cell parameters a = 0.5741 nm, Z = 4, and a structure similar to that of sodium chloride.^[3]^[4]

The compound melts congruently^{[clarification needed]} at 2100 °C.^[4]

References

^ Sergeeva, K. P. (2015-07-28). "The territorial structures in the settlement pattern and urbanization". Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya. (2): 122. doi:10.15356/0373-2444-2015-2-122. ISSN 0373-2444.
^ Andreev, O. V.; Kharitontsev, V. B.; Elyshev, A. V. (2013-08-01). "Compositions of phases in the interaction of rare-earth metals with selenium". Russian Journal of Inorganic Chemistry. 58 (8): 910–914. doi:10.1134/S0036023613080020. ISSN 1531-8613.
^ Predel, B., "Se-Tm (Selenium-Thulium)", Pu-Re – Zn-Zr, Berlin/Heidelberg: Springer-Verlag, pp. 1–2, doi:10.1007/10551312_2721, ISBN 3-540-61742-6, retrieved 2024-01-22
^ ^a ^b Diagrammy sostojanija dvojnych metalličeskich sistem: spravočnik v trech tomach. 3,2. Moskva: Mašinostroenie. 2001. ISBN 978-5-217-02932-7.