Astatobenzene

Astatobenzene

Names
Preferred IUPAC name phenylastatine
Identifiers
3D model (JSmol)	Interactive image
ChemSpider	67160605
ECHA InfoCard
E number
PubChem CID	15242632
CompTox Dashboard (EPA)	{{#property:P3117}}
InChI InChI=1S/C6H5At/c7-6-4-2-1-3-5-6/h1-5H Key: AQJDUTRRKMRFRS-UHFFFAOYSA-N
SMILES C1=CC=C(C=C1)[At]
Properties
Chemical formula	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). Infobox references

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.