Lanthanum monosulfide

Lanthanum monosulfide is a binary inorganic chemical compound of lanthanum metal and sulfur with the chemical formula.

Synthesis

Lanthanum monosulfide can be prepared from the effect of sulfur vapor on metallic lanthanum:
It can also be prepared from the reduction of with metallic La.

Physical properties

Lanthanum monosulfide forms golden crystals of the cubic system, space group Fm3''m'', cell parameters a = 0.586 nm, Z = 4, structurally isomorphous with NaCl.