Iodine pentafluoride

Template:Chembox header | Iodine pentafluoride
Iodine pentafluoride Iodine pentafluoride
Template:Chembox header | General
Systematic name	iodine(V) fluoride
Other names	iodine pentafluoride
Molecular formula	IF5
SMILES	?
Molar mass	221.89 g mol−1
Appearance	pale yellow liquid
CAS number	[7783-66-6]
Template:Chembox header | Properties
Density and phase	3.250 g cm−3 liquid
Solubility in water	? g/100 ml (?°C)
Melting point	9.43°C (282.58 K)
Boiling point	97.85°C (371.00 K)
Acidity (pKa)	?
Basicity (pKb)	?
Viscosity	? cP at ?°C
Template:Chembox header | Structure
Molecular shape	tetragonal-pyramidal
Coordination geometry	tetragonal-pyramidal
Crystal structure	monoclinic point group C2/c
Dipole moment	? D
Template:Chembox header | Hazards
MSDS	External MSDS]
Main hazards	toxic, oxidizer, corrosive
NFPA 704	Template:NFPA 704
Flash point	unflamable
R/S statement	R: Template:R8, Template:R14,
RTECS number	?
Template:Chembox header | Supplementary data page
Structure and properties	n, εr, etc.
Thermodynamic data	Phase behaviour Solid, liquid, gas
Spectral data	UV, IR, NMR, MS
Template:Chembox header | Related compounds
Related compounds	Iodine heptafluoride, Chlorine pentafluoride, Bromine pentafluoride
Template:Chembox header | Except where noted otherwise, data are given for materials in their standard state (at 25°C, 100 kPa) Infobox disclaimer and references

Iodine pentafluoride, IF₅, is a fluoride of iodine. It is a colourless or yellow liquid with a density of 3250 kg m⁻³. It was first synthesized by Henri Moissan in 1891 by burning solid iodine in fluorine gas. This exothermic reaction is still used to produce iodine pentafluoride, although the reaction conditions have been improved.

I₂ + 5 F₂ → 2 IF₅

Chemistry

Iodine pentafluoride is a strong fluorination agent and is highly oxidative. It reacts vigorously with water forming hydrofluoric acid.

Primary amines react with iodine pentafluoride forming nitriles after hydrolysis with water.

R-CH₂-NH₂ → R-CN

References

• R. C. Lord, M. A. Lynch, W. C. Schumb, and E. J. Slowinski (1950). "The Vibrational Spectra and Structures of Iodine Pentafluoride and Heptafluoride". Journal of the American Chemical Society. 72 (1): 522–527. doi:10.1021/ja01157a135.CS1 maint: Multiple names: authors list (link)
• Max T. Rogers, John L. Speirs, H. Bradford Thompson, and Morton B. Panish (1954). "Iodine Pentafluoride, Freezing and Boiling Point, Heat of Vaporization and Vapor Pressure-Temperature Relations". Journal of the American Chemical Society. 76 (19): 4843–4844. doi:10.1021/ja01648a022.CS1 maint: Multiple names: authors list (link)
• Max T. Rogers, H. Bradford Thompson, and John L. Speirs (1954). "Dielectric Constants of Liquid Chlorine Trifluoride and Iodine Pentafluoride". Journal of the American Chemical Society. 76 (19): 4843–4844.CS1 maint: Multiple names: authors list (link)
• Harold Simmons Booth, John Turner Pinkston, , Jr. (1947). "The Halogen Fluorides". Chemical Reviews. 41 (3): 421–439. doi:10.1021/cr60130a001.CS1 maint: Multiple names: authors list (link)

External links

• National Pollutant Inventory - fluoride and compounds fact sheet
• web elements listing

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