Hexaiodobenzene

Hexaiodobenzene is an aryl iodide and a six-substituted iodobenzene with the formula C6I6. Structurally, it is a derivative of benzene, in which all hydrogen atoms are replaced by iodine atoms. It forms orange crystals that are poorly soluble in all solvents. It adopts the expected structure with a central C6 ring.

Hexaiodobenzene
Names
Preferred IUPAC name
Hexaiodobenzene
Other names
Periodobenzene
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.009.246
PubChem CID
UNII
  • InChI=1S/C6I6/c7-1-2(8)4(10)6(12)5(11)3(1)9
    Key: QNMKKFHJKJJOMZ-UHFFFAOYSA-N
  • InChI=1/C6I6/c7-1-2(8)4(10)6(12)5(11)3(1)9
    Key: QNMKKFHJKJJOMZ-UHFFFAOYAO
SMILES
  • C1(=C(C(=C(C(=C1I)I)I)I)I)I
Properties
C6I6
Molar mass 833.493 g·mol−1
Appearance orange crystals
Density 4.60 g/cm3
Melting point 430 °C (806 °F; 703 K)
insoluble
Structure
monoclinic
Space group
 P21/c, No. 14
a = 8.87 Å, b = 4.29 Å, c = 16.28 Å
α = 90°, β = 93°, γ = 90°
Related compounds
Related compounds
 Hexafluorobenzene
Hexachlorobenzene
Hexabromobenzene
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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