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Revision as of 18:23, 5 August 2011

Argon fluorohydride
Argon fluorohydride
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
CompTox Dashboard (EPA)
InChI
  • InChI=1S/ArFH/c1-2/h1HKey: HEPJAPHKUAGBIG-UHFFFAOYSA-N
  • InChI=1/ArFH/c1-2/h1HKey: HEPJAPHKUAGBIG-UHFFFAOYAL
SMILES
  • F
Properties
Chemical formula HArF
Molar mass 59.954 g/mol
Appearance Unknown
Density Unknown
Melting point −256°C (Decomposes)
Solubility in water Unknown
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). checkY verify (what is  ?) Infobox references
Chemical compound

Argon fluorohydride (HArF) is the first known compound of the chemical element argon.

Discovery

The discovery of this first argon compound is credited to a group of Finnish scientists, led by Markku Räsänen. On 24 August 2000, in the journal Nature, they announced their discovery of argon fluorohydride.

Synthesis

This chemical was synthesized by mixing argon and hydrogen fluoride on a caesium iodide surface at −265 °C, and exposing the mixture to ultraviolet radiation. This caused the gases to combine.

The infrared spectrum of the resulting gas mixture shows that it definitely contains chemical bonds, albeit very weak ones; thus, it is argon hydrofluoride. Its chemical bonds are only stable if the substance is kept at temperatures below −256 °C; upon warming, it decomposes into argon and hydrogen fluoride.

References

  1. Khriachtchev, Leonid (24 August 2000). "A stable argon compound". Nature. 406 (6798): 874–876. doi:10.1038/35022551. PMID 10972285. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

Further reading

  • Emsley, John (2001). Nature's Building Blocks: An A–Z Guide to the Elements. Oxford: Oxford University Press. ISBN 0-19-850341-5.
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