Curium(III) bromide is the bromide salt of

curium Curium is a transuranic, radioactive chemical element with the symbol Cm and atomic number 96. This actinide element was named after eminent scientists Marie and Pierre Curie, both known for their research on radioactivity. Curium was first inte ...

. It has an

orthorhombic In crystallography, the orthorhombic crystal system is one of the 7 crystal systems. Orthorhombic lattices result from stretching a cubic lattice along two of its orthogonal pairs by two different factors, resulting in a rectangular prism with a r ...

crystal structure.

Preparation

Curium bromide can be produced by reacting curium chloride and ammonium bromide in a hydrogen atmosphere at 400–450 °C. : It can also be produced by reacting

curium(III) oxide Curium(III) oxide is a Chemical compound, compound composed of curium and oxygen with the chemical formula . It is a crystalline solid with a unit cell that contains two curium atoms and three oxygen atoms. The simplest synthesis equation involves ...

and hydrobromic acid at 600 °C.

Properties

Curium bromide is an ionic compound composed of Cm³⁺ and Br⁻, appearing as a colorless solid. It is orthorhombic, with space group Cmcm (No. 63) and lattice parameters ''a'' = 405 pm, ''b'' = 1266 pm and ''c'' = 912 pm. Its crystal structure is isostructural with

plutonium(III) bromide Plutonium(III) bromide is an inorganic salt of bromine and plutonium with the formula PuBr3. This radioactive green solid has few uses, however its crystal structure is often used as a structural archetype in crystallography. Crystal structure ...

References

{{Actinide halides Curium compounds bromides Actinide halides