Thorium diselenide

Thorium diselenide is an inorganic compound with the chemical formula ThSe2. It is one of the selenides of thorium. It was first obtained in 1896 through the reaction of thorium carbide and selenium vapour.

Preparation
Thorium diselenide can be prepared by the high-temperature reaction of thorium and selenium:


 * Th + 2 Se -> ThSe2

It can also be obtained by the thermal decomposition of phenylselenol thorium pyridine compound.