- Source: Caesium selenide
Caesium selenide is an inorganic compound of caesium and selenium. It is a selenide, with the chemical formula of Cs2Se. It can be prepared by reacting caesium and selenium. It has an inverse fluorite structure, with space group
F
m
3
¯
m
{\displaystyle Fm{\bar {3}}m}
. There are 4 units per unit cell, and the other selenides from the same group are similar.