Neodymium monosulfideNeodymium sulfide is a binary inorganic chemical compound of Neodymium metal and sulfur with the chemical formula.SynthesisFusion of stoichiometric amounts of pure substances:Physical propertiesNeodymium monosulfide forms crystals of the cubic system, space group Fm3''m'', cell parameter a = 0.5691 nm, Z = 4.