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Diiodine oxide

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This article is about the compound I2O. For the molecule IO, see Iodine monoxide.
Diiodine oxide or Iodo hypoiodite
Names
IUPAC name Diiodine oxide
Systematic IUPAC name Iodo hypoiodite
Other names Iodine hypoiodide, diiodooxidane, diiodine monoxide, hypoiodous anhydride
Identifiers
CAS Number
3D model (JSmol)
PubChem CID
CompTox Dashboard (EPA)
InChI
  • InChI=1S/I2O/c1-3-2Key: VSHDHKDWBUMJIJ-UHFFFAOYSA-N
SMILES
  • O(I)I
Properties
Chemical formula I2O
Molar mass 269.808 g/mol
Related compounds
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references
Chemical compound

Diiodine oxide, also known as iodo hypoiodite, 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.

Preparation

Diiodine oxide can be prepared by reacting iodine with potassium iodate (KIO3) in 96% sulfuric acid and then extracting it into chlorinated solvents.

Reactions

Diiodine oxide reacts with water to form hypoiodous acid:

I2O + H2O → 2 HIO

References

  1. "Epoxy-iodide".
  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. S2CID 191207025.
Iodine compounds
Iodine(−I)
Iodine(I)
Iodine(II)
Iodine(III)
Iodine(IV)
Iodine(V)
Iodine(VII)
Oxides
Mixed oxidation states
+1 oxidation state
+2 oxidation state
+3 oxidation state
+4 oxidation state
+5 oxidation state
+6 oxidation state
+7 oxidation state
+8 oxidation state
Related
Oxides are sorted by oxidation state. Category:Oxides
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