Dysprosium(III) selenide
(Redirected from Dysprosium sesquiselenide)
   
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3D model (JSmol)
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CompTox Dashboard (EPA)
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| 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).
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Dysprosium(III) selenide is one of the selenides of dysprosium, with the chemical formula of Dy2Se3.
Preparation
[edit]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
[edit]Dysprosium(III) selenide reacts with arsenic triselenide to obtain DyAsSe3.[3]
- Dy2Se3 + As2Se3 → 2DyAsSe3
References
[edit]- ^ Klemm, Wilhelm; Koczy, Alfred. Selenides of the rare earths. Zeitschrift fuer Anorganische und Allgemeine Chemie, 1937. 233: 84-96. ISSN 0044-2313.
- ^ Guittard, Micheline; Flahaut, Jean; Domange, Louis. Yttrium, gadolinium, dysprosium, and erbium selenides. Compt. Rend., 1963. 256: 427-429.
- ^ 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.