Cerium(III)_iodide

Cerium(III) iodide

Cerium(III) iodide

Chemical compound

Cerium(III) iodide (CeI3) is the compound formed by cerium(III) cations and iodide anions.

Quick Facts Names, Identifiers ...

Preparation

Cerium metal reacts with iodine when heated to form cerium(III) iodide:[2]

2 Ce + 3 I2 → 2 CeI3

It is also formed when cerium reacts with mercury(II) iodide at high temperatures:[2]

2 Ce + 3 HgI2 → 2 CeI3 + 3 Hg

Structure

Cerium(III) iodide adopts the plutonium(III) bromide crystal structure.[3][4] It contains 8-coordinate bicapped trigonal prismatic Ce3+ ions.[1]

Uses

Cerium(III) iodide is used as a pharmaceutical intermediate[5] and as a starting material for organocerium compounds.[2]

References

  1. [1]
    Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. pp. 1240–1241. ISBN 978-0-08-037941-8.
  2. [2]
    Imamoto, Tsuneo (15 April 2001). "Cerium(III) Iodide". Encyclopedia of Reagents for Organic Synthesis. John Wiley & Sons, Ltd. doi:10.1002/047084289X.rc043. ISBN 9780471936237.
  3. [3]
    Wells, A. F. (1984). Structural Inorganic Chemistry (5th ed.). Oxford University Press. p. 421. ISBN 978-0-19-965763-6.
  4. [4]
    Asprey, L. B.; Keenan, T. K.; Kruse, F. H. (1964). "Preparation and Crystal Data for Lanthanide and Actinide Triiodides". Inorg. Chem. 3 (8): 1137–1141. doi:10.1021/ic50018a015.
  5. [5]
    "7790-87-6 - Cerium(III) iodide, ultra dry, 99.9% (REO) - Cerium triiodide - 13641 - Alfa Aesar". alfa.com. Retrieved 2017-09-19.
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