Nitrosonium octafluoroxenate(VI)

Nitrosonium octafluoroxenate(VI)

Names
IUPAC name Nitrosonium octafluoroxenate(VI)
Identifiers
3D model (Jmol)	Interactive image
SMILES [N]#[O+].[N]#[O+].F[Xe-2](F)(F)(F)(F)(F)(F)[F]
Properties
Chemical formula	(NO) 2XeF 8
Density	3.354 g/cm³
Solubility in water	Reacts
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y  (what is YN ?)
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.

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

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