Xenon hexafluoride Identifiers Properties
other names Hexofluoroxenon
CAS number 13693-09-9
molecular formula XeF6
Molar mass 245.28 g mol-1
Density 3.56 g cm-3
melt point

49.25 °C

cook point

75.6 °C

Solubility in water reacts through water
other than where provided otherwise, data are provided for products in their conventional state(at 25°C, 100kPa)Infobox disclaimer and also references

Xenon hexafluoride is the chemistry compound through the formula XeF6. This colorless crystalline compound is among the three binary fluorides xenon, the other two gift XeF2 and also XeF4. All room exergonic and stable at common temperatures. XeF6 is the strongest fluorinating certified dealer of the series.

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Xenon hexafluoride have the right to be prepared by irreversible heating the XeF2 at about 300 degrees and also pressure 6 MPa.


The structure of XeF6 required several years to establish in contrast to the situations of xenon difluoride and xenon tetrafluoride. In the gas phase it adopts a contempt distorted octahedral geometry. That lacks perfect octahedral symmetry, together predicted by VSEPR theory as result of the presence of six fluoride ligands and one lone pair that electrons. According to Konrad Seppelt, then Associate Professor of Chemistry in ~ the college of Heidelberg, "the structure is best described in terms of a cell phone electron pair that moves over the faces and edges of the octahedron and also thus distorts it in a dynamic manner.".<1>NMR spectra of129Xe19F6 indicate that the is tetrameric: 4 equivalent xenon atoms are arranged in a tetrahedron surrounded by a fluctuating selection of 24 fluorine atoms the interchange location in a "cogwheel mechanism".



Xenon hexafluoride hydrolyzes stepwise, eventually affording xenon trioxide:<2>

XeF6 + H2O → XeOF4 + 2 HFXeOF4 + H2O → XeO2F2 + 2 HFXeO2F2 + H2O → XeO3 + 2 HF

XeF6 serves together a Lewis acid, binding one and two fluoride anions:

XeF6 + F- → XeF7-XeF7- + F- → XeF82-

The two other binary fluorides carry out not type such steady adducts with fluoride. The salt Rb2XeF8 is amongst the many robust xenon compounds, decomposing only above 400 °C.

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This short article is license is granted under the GNU complimentary Documentation License. It uses product from the Wikipedia post "Xenon_hexafluoride". A list of authors is easily accessible in Wikipedia.

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