Argon fluorohydride

Argon hydrogen fluoride

-246 ° C. (decomposition)

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Argonfluorohydrid is the only known chemical compound of the noble gas argon. It is very unstable and decomposes even at very low temperatures in hydrogen fluoride and elemental argon.

History

Argonfluorohydrid was first discovered in 2000 by a working group led by the Finnish chemist Markku Räsänen at the University of Helsinki.

Production and representation

To synthesize Argonfluorohydrid first hydrogen fluoride was frozen in an argon matrix at a surface at 7.5 K cesium iodide. This was irradiated with a krypton gas discharge lamp at wavelengths 127 to 160 nm. This dissociated part of the hydrogen fluoride, and formed Argonfluorohydrid.

Properties

Argonfluorohydrid is very unstable. On heating it decomposes at temperatures from 27 K and under UV radiation at wavelengths of 350 to 400 nm

According to theoretical calculations, the Argonfluorohydrid molecule has bond lengths of 133 pm for the H- AR and 197 pm for the Ar -F bond and a dipole moment of 6.51 D.

Proof

The compound was able to characteristic does not exist prior to the reaction bands in the IR spectrum at 435.7, 687 and be detected 1969.5 cm -1.