Cerium monoselenide is an inorganic compound 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 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: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