Curium(III) iodide

Source: Wikipedia, the free encyclopedia.
Curium(III) iodide
Names
Other names
Curium triiodide
Identifiers
3D model (
JSmol
)
  • InChI=1S/Cm.3HI/h;3*1H/q+3;;;/p-3
    Key: UVXBBRRWLDYFRE-UHFFFAOYSA-K
  • [I-].[I-].[I-].[Cm+3]
Properties
CmI3
Molar mass 628 g·mol−1
Appearance white crystals
Related compounds
Related compounds
Americium triiodide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Curium(III) iodide is the chemical compound with the formula CmI3.[1][2][3] 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(III) iodide.[4]

2Cm + 3I2 → 2CmI3

Also by the reaction of curium(III) chloride with ammonium iodide:[5][6]

CmCl3 + 3NH4I → CmI3 + 3NH4Cl

Physical properties

Curium(III) 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 (space group no. 148) 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.[5][7]

References

  1. ISBN 978-1-4020-3598-2
    . Retrieved 3 July 2023.
  2. ISBN 978-0-470-10840-6
    . Retrieved 3 July 2023.
  3. ^ "WebElements Periodic Table » Curium » curium triiodide". winter.group.shef.ac.uk. Retrieved 3 July 2023.
  4. JSTOR 1675046
    . Retrieved 3 July 2023.
  5. ^
    S2CID 96551460
    . Retrieved 3 July 2023.
  6. ISBN 978-3-662-11547-3
    . Retrieved 3 July 2023.
  7. ISBN 978-0-412-30120-9
    . Retrieved 3 July 2023.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Curium(III)_iodide&oldid=1191079860"