Dysprosium(III) telluride

Dysprosium(III) telluride is an inorganic compound, one of the tellurides of dysprosium, with the chemical formula Dy₂Te₃, where Dy is in the +3 oxidation state.

Dysprosium(III) telluride

Identifiers
CAS Number	12159-43-2 Y
3D model (JSmol)	Interactive image
ECHA InfoCard	100.032.068
EC Number	235-288-9
PubChem CID	6336989
InChI InChI=1S/2Dy.3Te Key: ISSYQCZLWJTXOM-UHFFFAOYSA-N
SMILES [Te].[Te].[Te].[Dy].[Dy]
Properties
Chemical formula	Dy2Te3
Molar mass	707.80
Melting point	around 1550 °C
Structure
Crystal structure	Sc2S3[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Preparation

Dysprosium(III) telluride can be obtained by reacting tellurium and dysprosium in a stoichiometric ratio:^[1]

2 Dy + 3 Te → Dy₂Te₃

Properties

Dysprosium(III) telluride reacts with copper(II) telluride at high temperature to obtain phases such as DyCuTe₂, DyCu₅Te₄, and Dy₇Cu₃Te₁₂.^[2] It and cadmium telluride can form CdDy₂Te₄ at high temperatures:^[3]

Dy₂Te₃ + CdTe → CdDy₂Te₄