Astatine iodide

Astatine iodide is an interhalogen compound with the chemical formula AtI. It is the second heaviest known interhalogen compound, after iodine tribromide.

Astatine iodide
Names
IUPAC name
Astatine monoiodide
Other names
Astatine iodide
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/AtH2.HI/h1H2;1H/q+1;/p-1
    Key: TWAXUBWUPRBIEH-UHFFFAOYSA-M
  • InChI=1/AtH2.HI/h1H2;1H/q+1;/p-1
    Key: TWAXUBWUPRBIEH-REWHXWOFAE
  • [I-].[At+]
Properties
AtI
Molar mass 336.904 g/mol
Boiling point 213 °C; 415 °F; 486 K [1]
Related compounds
Other anions
 Astatine monobromide
Astatine monochloride
Related interhalogen compounds
 Iodine monochloride
Iodine monofluoride
Bromine monochloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Production

Astatine iodide is produced by the direct combination of astatine and iodine in a 1:1 molar ratio:[2]

At2 + I2 → 2 AtI

References
  1. Otozai, K.; Takahashi, N. (1982). "Estimation Chemical Form Boiling Point Elementary Astatine by Radio Gas Chromatography". Radiochimica Acta. 31 (3–4): 201–203. doi:10.1524/ract.1982.31.34.201. S2CID 100363889.
  2. Zuckerman & Hagen 1989, p. 31.

Bibliography
  • Zuckerman, J J; Hagen, A P (1989). Inorganic Reactions and Methods, the Formation of Bonds to Halogens. John Wiley & Sons. ISBN 978-0-471-18656-4.
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