Neodymium bismuthide or Bismuth-Neodymium is a binary inorganic compound of

neodymium Neodymium is a chemical element with the symbol Nd and atomic number 60. It is the fourth member of the lanthanide series and is considered to be one of the rare-earth metals. It is a hard, slightly malleable, silvery metal that quickly tarnishe ...

and

bismuth Bismuth is a chemical element with the symbol Bi and atomic number 83. It is a post-transition metal and one of the pnictogens, with chemical properties resembling its lighter group 15 siblings arsenic and antimony. Elemental bismuth occurs ...

with the formula NdBi. It forms

crystal A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macro ...

Preparation

Neodymium bismuthide can be prepared by reacting a

stoichiometric Stoichiometry refers to the relationship between the quantities of reactants and products before, during, and following chemical reactions. Stoichiometry is founded on the law of conservation of mass where the total mass of the reactants equ ...

amount of neodymium and bismuth at 1900°C: :Nd + Bi → NdBi

Physical properties

Neodymium bismuthide forms cubic crystals of the

space group In mathematics, physics and chemistry, a space group is the symmetry group of an object in space, usually in three dimensions. The elements of a space group (its symmetry operations) are the rigid transformations of an object that leave it uncha ...

''Fm''3''m'', with cell parameters ''a'' = 0.64222 nm, Z = 4 with a structure like sodium chloride. The compound melts at 1900°C. At a temperature of 24 K, an antiferromagnetic transition occurs in the compound.

References

Neodymium(III) compounds Bismuth compounds Bismuthides Rock salt crystal structure {{inorganic-compound-stub