Iodine trifluoride
Iodine trifluoride is an interhalogen compound with the chemical formula IF3. It is a yellow solid which decomposes above −28 °C. It can be synthesised from the elements, but care must be taken to avoid the formation of IF5.
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| Names | |
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| IUPAC name
Iodine trifluoride | |
| Other names
iodine(III) fluoride | |
| Identifiers | |
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CompTox Dashboard (EPA) |
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| Properties | |
| IF3 | |
| Molar mass | 183.9 g/mol |
| Appearance | yellow solid |
| Melting point | decomposes above −28 °C |
| Related compounds | |
Other anions |
iodine trichloride |
Other cations |
bromine trifluoride |
Related compounds |
chlorine trifluoride iodine pentafluoride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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Reactions
F2 reacts with I2 to yield IF3 at −45 °C in CCl3F. Alternatively, at low temperatures, the fluorination reaction I2 + 3XeF2 → 2IF3 + 3Xe can be used. Not much is known about iodine trifluoride as it is so unstable.
Chemical properties
Iodine trifluoride has five electron pairs, and like chlorine trifluoride is T-shaped as predicted by VSEPR Theory.[1]
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References
- Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
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