Contents

Californium(III) iodide

Californium(III) iodide

Names
Other names Californium triiodide[1]
Identifiers
CAS Number	20758-81-0
3D model (JSmol)	Interactive image
InChI InChI=1S/Cf.3HI/h;3*1H/q+3;;;/p-3 Key: SJKPTAUDVXCUTB-UHFFFAOYSA-K
SMILES [Cf+3].[I-].[I-].[I-]
Properties
Chemical formula	CfI3
Molar mass	632 g·mol−1
Appearance	red-orange solid
Density	g/cm3
Boiling point	800 °C (1,470 °F; 1,070 K)
Solubility in water	insoluble
Structure
Crystal structure	trigonal
Related compounds
Related compounds	Einsteinium(III) iodide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Chemical compound

Californium(III) iodide is a binary inorganic compoundofcalifornium and iodine with the formula CfI
₃.^[2][3]

Synthesis[edit]

Californium triiodide can be prepared in microgram quantities under high vacuum. It can be prepared at 500 °C from californium(III) hydroxide and hydrogen iodide:

Cf(OH)₃ + 3HI → CfI₃ + 3H₂O

Physical properties[edit]

The compound forms a red-orange solid. The triiodide sublimes at ~800 °C without melting. It crystallizes in the trigonal crystal structure in the space group R3 (No. 148) with the lattice parameters a = 758.7 pm and c = 2081.4 pm with six formula units per unit cell. Its crystal structure is isotypic with that of bismuth(III) iodide.

References[edit]

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