Nitrosonium hexafluorouranate is an inorganic compound with the chemical formula NOUF6, composed of the nitrosonium cation [NO]+ and hexafluorouranate anion [UF6]-. It is a bluish-green solid, forming cubic crystals.
Preparation Nitrosonium hexafluorouranate can be prepared by reacting uranium hexafluoride with nitric oxide or nitrogen dioxide. The reaction can also be performed in anhydrous HF.
Reactions Nitrosonium hexafluorouranate, when combined with alkali metal nitrates from lithium to cesium (denoted by M), reacts to form the corresponding alkali metal hexafluorouranate along with two nitrogen dioxide molecules.
NOUF6(s) + M NO3(s) →ΔT M UF6(s) + 2NO2(g) M = Li − Cs
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