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Dysprosium(III) selenide
Identifiers
EC Number
InChI=1S/2Dy.3Se/q2*+3;3*-2
Key: AXKRJHNJTNYZJO-UHFFFAOYSA-N
[Se-2].[Se-2].[Se-2].[Dy+3].[Dy+3]
Properties
Dy 2 Se 3
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).
Chemical compound
Dysprosium(III) selenide is one of the
selenides of
dysprosium , with the chemical formula of Dy2 Se3 .
Dysprosium(III) selenide can be prepared by reacting
dysprosium(III) oxide or
dysprosium(III) chloride with
hydrogen selenide :
[1]
Dy2 O3 + 3 H2 Se → Dy2 Se3 + 3 H2 O
2 DyCl3 + 3 H2 Se → Dy2 Se3 + 6 HCl
It can also be obtained by reacting the elements at high temperatures:
[2]
2 Dy + 3 Se → Dy2 Se3
Dysprosium(III) selenide reacts with
arsenic triselenide to obtain DyAsSe3 .
[3]
Dy2 Se3 + As2 Se3 → 2DyAsSe3
^ 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 .
Salts and covalent derivatives of the
selenide ion