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Praseodymium monoselenide

From Wikipedia, the free encyclopedia
Praseodymium monoselenide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard100.031.689Edit this at Wikidata
EC Number
  • 234-872-0
  • InChI=1S/Pr.Se
    Key: FAEQPLMETHVSSH-UHFFFAOYSA-N
  • [Pr].[Se]
Properties
PrSe
Molar mass219.87
Density6.9 g/cm3
Melting point2,100 °C (3,810 °F; 2,370 K)
Related compounds
Otheranions
PrS
PrTe
Othercations
CeSe
NdSe
Related compounds
Pr2Se3
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
Chemical compound

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

Preparation

[edit]

Praseodymium monoselenide can be prepared by directly reactingpraseodymium andselenium 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

[edit]

Praseodymium monoselenide formscubic crystals,space groupFm3m,unit cell parameters a = 0.5741 nm, Z = 4, and a structure similar to that ofsodium chloride.[3][4]

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

References

[edit]
  1. ^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.
  2. ^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.
  3. ^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, retrieved2024-01-22{{citation}}: CS1 maint: work parameter with ISBN (link)
  4. ^abDiagrammy sostojanija dvojnych metalličeskich sistem: spravočnik v trech tomach. 3,2. Moskva: Mašinostroenie. 2001.ISBN 978-5-217-02932-7.
Pr(II)
Pr(III)
Organopraseodymium(III) compounds
Pr(III,IV)
Pr(IV)
Pr(V)
Salts and covalent derivatives of theselenide ion
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