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:Klemm, Wilhelm; Koczy, Alfred. Selenides of the rare earths. Zeitschrift fuer Anorganische und Allgemeine Chemie, 1937. 233: 84-96. .
It can also be obtained by reacting the elements at high temperatures:Guittard, Micheline; Flahaut, Jean; Domange, Louis. Yttrium, gadolinium, dysprosium, and erbium selenides. Compt. Rend., 1963. 256: 427-429.
Properties
Dysprosium(III) selenide reacts with arsenic triselenide to obtain DyAsSe3.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. .
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