Cerium monoselenide

Cerium monoselenide is an inorganic compound with the chemical formula CeSe. It exists in the form of Ce³⁺Se²⁻(e⁻).^[2]

Cerium monoselenide

Identifiers
CAS Number	12014-83-4 Y
3D model (JSmol)	Interactive image
PubChem CID	170843467
InChI InChI=1S/Ce.Se Key: LNUVLVYMHRNGRT-UHFFFAOYSA-N
SMILES [Se].[Ce]
Properties
Chemical formula	CeSe
Appearance	purple solid[1]
Structure
Crystal structure	NaCl-type (cubic)
Space group	Fm3m (No. 225)
Related compounds
Other anions	Cerium monosulfide Cerium monotelluride
Related compounds	Cerium selenide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Preparation

Cerium monoselenide can be obtained by reducing cerium selenide with metallic sodium at 600 °C (or calcium at 1000 °C):^[2]

Ce₂Se₃ + 2Na → 2CeSe + Na₂Se

The reduction of cerium selenide by cerium dihydride can also produce cerium monoselenide:^[1]

Ce₂Se₃ + CeH₂ → 3 CeSe + H₂↑

Properties

Like many other rare earth monochalcogenides, Cerium monoselenide has metallic-type electrical conductivity and a NaCl-type crystal structure.^[3]