Chemistry:Iodine trifluoride dioxide

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Iodine trifluoride dioxide
Names
Other names
Iodyl trifluoride
Identifiers
3D model (JSmol)
Properties
F3IO2
Molar mass 215.898 g·mol−1
Appearance yellow crystals
Melting point 41 °C (106 °F; 314 K)
Hazards
Main hazards ignites on contact with flammable organic substances
Related compounds
Related compounds
Iodosyl trifluoride
Iodosyl pentafluoride
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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Iodine trifluoride dioxide is an inorganic compound of iodine, fluorine, and oxygen with the chemical formula IO
2
F
3
.[1][2][3] The compound was first obtained by Engelbrecht and Petersy in 1969.[4]

Synthesis

Iodine trifluoride dioxide may be formed by the reaction of HOIOF
4
and oleum.[4]

Physical properties

Iodine trifluoride dioxide forms yellow crystals, which melt at 41 °C.[5] Decomposes under direct sunlight or heating.

The molecules in the crystals are dimers. The compound is monomeric above 100 °C.[6]

Chemical properties

Iodine trifluoride dioxide decomposes when heated:

2IO
2
F
3
→ 2IOF
3
+ O
2

References