Curium(III) chloride or curium trichloride is a actinide chemical compound with the chemical formula CmCl3.
Structure Curium(III) chloride has a 9 coordinate tricapped trigonal prismatic geometry.
Synthesis Curium(III) chloride can be obtained from the reaction of hydrogen chloride gas with curium dioxide, curium(III) oxide, or curium(III) oxychloride at a temperature of 400-600 °C:
It can also be obtained from the dissolution of metallic curium in dilute hydrochloric acid:
in H2O
This method is complicated by the ongoing processes of hydrolysis and hydration of the resulting compound in an aqueous solution, making it problematic to obtain a pure product.
It can be obtained from the reaction of curium nitride with cadmium chloride:
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