Cerium monoselenide explained

Cerium monoselenide is an inorganic compound with the chemical formula CeSe. It exists in the form of Ce³⁺Se²⁻(e⁻).^[1]

Preparation

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

Ce₂Se₃ + 2Na → 2CeSe + Na₂Se

The reduction of cerium selenide by cerium dihydride can also produce cerium monoselenide:^[2]

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]

Notes and References

1. 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
2. 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
3. Smolensky . G. A. . Adamjan . V. E. . Loginov . G. M. . Antiferromagnetic Properties of Light Rare Earth Monochalcogenides . Journal of Applied Physics . AIP Publishing . 39 . 2 . 1968-02-01 . 0021-8979 . 10.1063/1.2163619 . 786–790.