Astatobenzene

Astatobenzene
Names
Preferred IUPAC name
phenylastatine
Identifiers
3D model (JSmol)
Abbreviations PhAt
ChemSpider
  • InChI=1S/C6H5At/c7-6-4-2-1-3-5-6/h1-5H
    Key: AQJDUTRRKMRFRS-UHFFFAOYSA-N
  • C1=CC=C(C=C1)[At]
Properties
C6H5At
Molar mass 287 g·mol−1
Related compounds
Related halobenzenes
 Fluorobenzene
Chlorobenzene
Bromobenzene
Iodobenzene
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Astatobenzene is an organoastatine chemical compound with the formula C6H5At. This is a compound in which an astatine atom, the rarest halogen, is bonded to a benzene ring.

Synthesis

Several methods of obtaining astatobenzene are described.

Homogeneous exchange between iodobenzene and astatine iodide at room temperature:

C6H5I + AtI → C6H5At + I2

Also, synthesis from phenylhydrazine and astatine iodide:

C6H5NHNH2 + AtI + I2 → C6H5At + N2 + 3 HI

Also, thermal decomposition of diphenyliodonium iodide containing diphenyliodonium astatide:

(C6H5)2IAt → C6H5At + C6H5I

Uses

The compound is of scientific interest primarily in research contexts involving astatine chemistry and radiopharmaceutical applications, where astatine radioactive isotopes are used.

References

  1. ↑ Hirata, Saki; Mishiro, Kenji; Washiyama, Kohshin; Munekane, Masayuki; Fuchigami, Takeshi; Arano, Yasushi; Takahashi, Kazuhiro; Kinuya, Seigo; Ogawa, Kazuma (23 January 2025). "In Vivo Stability Improvement of Astatobenzene Derivatives by Introducing Neighboring Substituents". Journal of Medicinal Chemistry. 68 (2): 1540–1552. doi:10.1021/acs.jmedchem.4c02188. ISSN 0022-2623. PMID 39757786. Retrieved 1 September 2025.
  2. ↑ Samson, G.; Aten, A. H. W. (1 June 1970). "Syntheses of Astatobenzene". Radiochimica Acta. 13 (4): 220–221. Bibcode:1970RadAc..13..220S. doi:10.1524/ract.1970.13.4.220. ISSN 2193-3405. Retrieved 1 September 2025.
  3. ↑ Advances in Inorganic Chemistry. Academic Press. 27 May 1987. p. 58. ISBN 978-0-08-057880-4. Retrieved 1 September 2025.
  4. ↑ Kugler, Hans K.; Keller, Cornelius (9 March 2013). At Astatine. Springer Science & Business Media. p. 239. ISBN 978-3-662-05868-8. Retrieved 1 September 2025.
  5. ↑ Vásaros, L.; Berei, K.; Norseyev, Yu V. (1 June 1989). "Some Replacement and Addition Reactions of Astatine". Radiochimica Acta. 47 (2–3): 119–128. Bibcode:1989RadAc..47..119V. doi:10.1524/ract.1989.47.23.119. ISSN 2193-3405. Retrieved 1 September 2025.
  6. ↑ Hagen, A. P. (17 September 2009). Inorganic Reactions and Methods, The Formation of Bonds to Halogens (Part 1). John Wiley & Sons. p. 426. ISBN 978-0-470-14538-8. Retrieved 1 September 2025.