Diiodine oxide

Diiodine oxide or Iodo hypoiodite
Names
IUPAC name
Diiodine oxide
Systematic IUPAC name
Iodo hypoiodite[1]
Other names
Iodine hypoiodide, diiodooxidane, diiodine monoxide, hypoiodous anhydride
Identifiers
CAS Number
  • 17739-47-8
3D model (JSmol)
  • Interactive image
PubChem CID
  • 14513630
CompTox Dashboard (EPA)
  • DTXSID201336701 Edit this at Wikidata
InChI
  • InChI=1S/I2O/c1-3-2
    Key: VSHDHKDWBUMJIJ-UHFFFAOYSA-N
  • O(I)I
Properties
Chemical formula
 I2O
Molar mass 269.808 g/mol
Related compounds
Related compounds
  • Water
  • Oxygen difluoride
  • Dichlorine monoxide
  • Dibromine monoxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 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.[2]

Preparation

Diiodine oxide can be prepared by reacting iodine with potassium iodate (KIO3) in 96% sulfuric acid and then extracting it into chlorinated solvents.[2]

Reactions

Diiodine oxide reacts with water to form hypoiodous acid:

I2O + H2O → 2 HIO

References

  1. ^ "Epoxy-iodide".
  2. ^ 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. S2CID 191207025.
  • v
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Iodine(-I)
Iodine(I)
Iodine(II)
Iodine(III)
  • HIO2
  • ICl3
  • IF3
  • IBr3
  • I2(SO4)3
Iodine(IV)
  • IO
    2
Iodine(V)
  • HIO3
  • IF5
  • I2O5
  • IO2F
  • IOF3
Iodine(VII)
  • HIO4
  • H5IO6
  • IF7
  • IO3F
  • IO2F3
  • IOF5
  • v
  • t
  • e
Mixed oxidation states
+1 oxidation state
+2 oxidation state
+3 oxidation state
  • Actinium(III) oxide (Ac2O3)
  • Aluminium oxide (Al2O3)
  • Americium(III) oxide (Am2O3)
  • Antimony trioxide (Sb2O3)
  • Arsenic trioxide (As2O3)
  • Berkelium(III) oxide (Bk2O3)
  • Bismuth(III) oxide (Bi2O3)
  • Boron trioxide (B2O3)
  • Caesium sesquioxide (Cs2O3)
  • Californium(III) oxide (Cf2O3)
  • Cerium(III) oxide (Ce2O3)
  • Chromium(III) oxide (Cr2O3)
  • Cobalt(III) oxide (Co2O3)
  • Dinitrogen trioxide (N2O3)
  • Dysprosium(III) oxide (Dy2O3)
  • Einsteinium(III) oxide (Es2O3)
  • Erbium(III) oxide (Er2O3)
  • Europium(III) oxide (Eu2O3)
  • Gadolinium(III) oxide (Gd2O3)
  • Gallium(III) oxide (Ga2O3)
  • Gold(III) oxide (Au2O3)
  • Holmium(III) oxide (Ho2O3)
  • Indium(III) oxide (In2O3)
  • Iron(III) oxide (Fe2O3)
  • Lanthanum oxide (La2O3)
  • Lutetium(III) oxide (Lu2O3)
  • Manganese(III) oxide (Mn2O3)
  • Neodymium(III) oxide (Nd2O3)
  • Nickel(III) oxide (Ni2O3)
  • Phosphorus trioxide (P4O6)
  • Praseodymium(III) oxide (Pr2O3)
  • Promethium(III) oxide (Pm2O3)
  • Rhodium(III) oxide (Rh2O3)
  • Samarium(III) oxide (Sm2O3)
  • Scandium oxide (Sc2O3)
  • Terbium(III) oxide (Tb2O3)
  • Thallium(III) oxide (Tl2O3)
  • Thulium(III) oxide (Tm2O3)
  • Titanium(III) oxide (Ti2O3)
  • Tungsten(III) oxide (W2O3)
  • Vanadium(III) oxide (V2O3)
  • Ytterbium(III) oxide (Yb2O3)
  • Yttrium(III) oxide (Y2O3)
+4 oxidation state
+5 oxidation state
+6 oxidation state
+7 oxidation state
+8 oxidation state
Related
Oxides are sorted by oxidation state. Category:Oxides