Nitrosonium octafluoroxenate(VI)

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Nitrosonium octafluoroxenate(VI)
Names
IUPAC name
Nitrosonium octafluoroxenate(VI)
Identifiers
Jmol 3D model Interactive image
  • [N]#[O+].[N]#[O+].F[Xe-2](F)(F)(F)(F)(F)(F)[F]
Properties
(NO)
2XeF
8
Density 3.354 g/cm³
Reacts
Vapor pressure {{{value}}}
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Nitrosonium octafluoroxenate(VI) is a chemical compound of xenon with nitrogen, oxygen, and fluorine, having formula (NO)
2XeF
8. It is an ionic compound containing well-separated nitrosonium cations (NO+) and octafluoroxenate(VI) anions (XeF2−
8). The molecular geometry of the octafluoroxenate(VI) ion is square antiprismatic, having Xe–F bond lengths of 1.971 Å, 1.946 Å, 1.958 Å, 2.052 Å, and 2.099 Å.[1]

It is synthesized by the reaction of xenon hexafluoride (XeF
6) with nitrosyl fluoride (NOF):[2]

XeF
6 + 2 NOF → (NO)
2XeF
8

Other compounds containing the octafluoroxenate(VI) ion include its alkali metal salts, including Cs2XeF8 and Rb2XeF8, which are stable up to 400 °C.[3][4]

References

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