Iodine pentafluoride

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Iodine pentafluoride
Iodine pentafluoride Iodine pentafluoride
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]
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
Structure
Molecular shape tetragonal-pyramidal[1]
Coordination
geometry
tetragonal-pyramidal
Crystal structure monoclinic
point group C2/c
Dipole moment ? D
Hazards
MSDS External MSDS]
Main hazards toxic, oxidizer, corrosive
NFPA 704
NFPA 704.svg
0
3
2
OX
Flash point unflamable
R/S statement R: R8, R14,
RTECS number ?
Supplementary data page
Structure and
properties
n, εr, etc.
Thermodynamic
data
Phase behaviour
Solid, liquid, gas
Spectral data UV, IR, NMR, MS
Related compounds
Related compounds Iodine heptafluoride,
Chlorine pentafluoride,
Bromine pentafluoride
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.[2] This exothermic reaction is still used to produce iodine pentafluoride, although the reaction conditions have been improved.[3][4]

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.[5]

R-CH2-NH2 → R-CN

References

  1. R. D. Durbank, G. R. Jones (1974). "Crystal structure of iodine pentafluoride at -80.deg". Inorganic Chemistry. 13 (5): 421–439. doi:10.1021/ic50135a012.
  2. M. H. Moissan (1891). "Nouvelles Recherches sur le Fluor". Annales de chimie et de physique. 6: 224–282.
  3. Otto Ruff , Keim R. (1930). ""Das Jod-7-fluorid" (The iodine-7-fluoride)". Zeitschrift für Anorganische un Allgemeine Chemie. 193 (1/2): 176–186. doi:10.1002/zaac.19301930117.
  4. Ruff O., Keim R. (1931). "Fluorierung von Verbindungen des Kohlenstoffs (Benzol und Tetrachlormethan mit Jod-5-fluorid, sowie Tetrachlormethan mit Fluor)". Zeitschrift für Anorganische un Allgemeine Chemie. 201 (1): 245–258. doi:10.1002/zaac.19312010122.
  5. T. E. Stevens (1966). "Rearrangement of Amides with Iodine Pentafluoride". Journal of Organic Chemistry. 31 (6): 2025–2026. doi:10.1021/jo01344a539.

External links


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