Samarium(III) antimonide

Samarium antimonide is a binary inorganic compound of samarium and antimony with the formula SmSb. It forms crystals.

Preparation
Samarium antimonide can be prepared by heating samarium and antimony in a vacuum:
 * $$\mathsf{ Sm + Sb \ \xrightarrow{1922^oC}\ SmSb }$$

Physical properties
Samarium antimonide forms cubic crystals, space group Fm3m, cell parameters a = 0.6271 nm, Z = 4, and structure like sodium chloride.

The compound melts congruently at a temperature of ≈2000 °C or 1922 °C.