Californium(III) iodide

Californium(III) iodide
Names
Other names
Californium triiodide[1]
Identifiers
3D model (JSmol)
  • InChI=1S/Cf.3HI/h;3*1H/q+3;;;/p-3
    Key: SJKPTAUDVXCUTB-UHFFFAOYSA-K
  • [Cf+3].[I-].[I-].[I-]
Properties
CfI3
Molar mass 632 g·mol−1
Appearance red-orange solid
Density g/cm3
Boiling point 800 °C (1,470 °F; 1,070 K)
insoluble
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).

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

Synthesis

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

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

  1. ^ "WebElements Periodic Table » Californium » californium triiodide". webelements.com. Retrieved 11 April 2023.
  2. ^ Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 2826. ISBN 978-0-412-30120-9. Retrieved 11 April 2023.
  3. ^ ERDA Energy Research Abstracts. ERDA Technical Information Center, etc.; Washington. 1977. p. 565. Retrieved 11 April 2023.
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