Diiodine oxide

Diiodine oxide or Iodohypoiodite
Names
	IUPAC name Diiodine oxide
	Systematic IUPAC name Iodohypoiodite
	Other names Oxygen diiodide, iodine hypoiodide, diiodooxidane
Identifiers
CAS Number	17739-47-8;
3D model (JSmol)	Interactive image;
PubChem CID	14513630;
CompTox Dashboard (EPA)	DTXSID201336701 ;
	InChI InChI=1S/I2O/c1-3-2 Key: VSHDHKDWBUMJIJ-UHFFFAOYSA-N;
	SMILES O(I)I;
Properties
Chemical formula	I2O
Molar mass	269.808 g/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Diiodine oxide, as known as iodohypoiodite, is an oxide of iodine that is equivalent to an acid anhydride of hypoiodous acid. This substance is unstable and it is very difficult to isolate.^[2]

Preparation

Diiodine oxide can be prepared in 96% sulfuric acid and extracted into chlorinated solvents.^[2]

Reaction

Diiodine oxide reacts with water to form hypoiodous acid:

I₂O + H₂O → 2 HIO

Related substances

References

^ https://pubchem.ncbi.nlm.nih.gov/compound/14513630#section=IUPAC-Name&fullscreen=true
^ ^a ^b Furrow, Stanley D.; Schmitz, Guy E. (2019-09-01). "I2O in solution and volatility". Chemical Physics Letters. 730: 186–190. Bibcode:2019CPL...730..186F. doi:10.1016/j.cplett.2019.05.052. ISSN 0009-2614.

[1] ttps://pubchem.ncbi.nlm.nih.gov/compound/14513630#section=IUPAC-Name&fullscreen=true

[:0-2] Furrow, Stanley D.; Schmitz, Guy E. (2019-09-01). "I2O in solution and volatility". Chemical Physics Letters. 730: 186–190. Bibcode:2019CPL...730..186F. doi:10.1016/j.cplett.2019.05.052. ISSN 0009-2614.

[1]

[2]