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Dysprosium(III) selenide

Dysprosium(III) selenide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.490 Edit this at Wikidata
EC Number
  • 234-652-4
  • InChI=1S/2Dy.3Se/q2*+3;3*-2
    Key: AXKRJHNJTNYZJO-UHFFFAOYSA-N
  • [Se-2].[Se-2].[Se-2].[Dy+3].[Dy+3]
Properties
Dy2Se3
Molar mass 561.913 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Dysprosium(III) selenide is one of the selenides of dysprosium, with the chemical formula of Dy2Se3.

Preparation

Dysprosium(III) selenide can be prepared by reacting dysprosium(III) oxide or dysprosium(III) chloride with hydrogen selenide:[1]

Dy2O3 + 3 H2Se → Dy2Se3 + 3 H2O
2 DyCl3 + 3 H2Se → Dy2Se3 + 6 HCl

It can also be obtained by reacting the elements at high temperatures:[2]

2 Dy + 3 Se → Dy2Se3

Properties

Dysprosium(III) selenide reacts with arsenic triselenide to obtain DyAsSe3.[3]

Dy2Se3 + As2Se3 → 2DyAsSe3

References

  1. ^ Klemm, Wilhelm; Koczy, Alfred. Selenides of the rare earths. Zeitschrift fuer Anorganische und Allgemeine Chemie, 1937. 233: 84-96. ISSN 0044-2313.
  2. ^ Guittard, Micheline; Flahaut, Jean; Domange, Louis. Yttrium, gadolinium, dysprosium, and erbium selenides. Compt. Rend., 1963. 256: 427-429.
  3. ^ Azadaliev, R. A.; Aleiv, O. M.; Sadykhov, F. M.; Il'yasov, T. M.; Rustamov, P. G. Dysprosium sesquiselenide-arsenic sesquiselenide system. Zhurnal Neorganicheskoi Khimii, 1992. 37 (12): 2790-2791. ISSN 0044-457X.
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