Curium(III) iodide

Curium iodide is the chemical compound with the formula. Since all isotopes of curium are only artificially produced, the compound has no natural occurrence.

Synthesis

Elemental curium and iodine can be reacted to synthesize curium iodide.
Also by the reaction of curium(III) chloride with ammonium iodide:

Physical properties

Curium iodide is a colorless ionic compound consisting of Cm³⁺ and I⁻ ions. It forms white crystals the hexagonal crystal system in the space group R₃ with the lattice parameters a = 744 pm and c = 2040 pm with six units per unit cell. Its crystal structure is isotypic with that of bismuth(III) iodide.