Cerium monoselenide is an

inorganic compound In chemistry, an inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as '' inorganic chemi ...

with the chemical formula CeSe. It exists in the form of Ce³⁺Se²⁻(e⁻).洪广言. 现代化学基础丛书第36卷稀土化学导论. 北京: 科学出版社, 2014. pp. 62-63. 2. 稀土硒化物 ISBN 978-7-03-040581-4

Preparation

Cerium monoselenide can be obtained by reducing cerium selenide with metallic

sodium Sodium is a chemical element with the symbol Na (from Latin ''natrium'') and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table. Its only stable ...

at 600 °C (or

calcium Calcium is a chemical element with the symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar t ...

at 1000 °C): : Ce₂Se₃ + 2Na → 2CeSe + Na₂Se The reduction of cerium selenide by

cerium dihydride Cerium is a chemical element with the symbol Ce and atomic number 58. Cerium is a soft, ductile, and silvery-white metal that tarnishes when exposed to air. Cerium is the second element in the lanthanide series, and while it often shows the +3 o ...

can also produce cerium monoselenide:Obolonchik, V. A.; Mikhlina, T. M. Synthesis of rare earth metal monoselenides. ''Izvestiya Akademii Nauk SSSR, Neorganicheskie Materialy'', 1968. 4(2): 287-8. ISSN:0002-337X : 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.

References

{{Selenides Cerium(III) compounds category:Selenides Rock salt crystal structure Electrides