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Ozonide is the polyatomic ion . Cyclic compound organic compounds formed by the addition of ozone () to an alkene are also called ozonides.
Inorganic ozonides are formed by burning potassium, rubidium, or caesium in ozone, or by treating the alkali metal hydroxide with ozone; this yields potassium ozonide, rubidium ozonide, and caesium ozonide respectively. They are very sensitive explosives that have to be handled at low temperatures in an inert gas atmosphere. Lithium and sodium ozonide are extremely labile and must be prepared by low-temperature ion exchange starting from . Sodium ozonide, , which is prone to decomposition into Sodium hydroxide and , was previously thought to be impossible to obtain in pure form. However, with the help of and methylamine, pure sodium ozonide may be obtained as red crystals isostructural to sodium nitrite.
Ionic ozonides are being investigated as sources of oxygen in chemical oxygen generators. Tetramethylammonium ozonide, which can be made by a metathesis reaction with caesium ozonide in liquid ammonia, is stable up to :
Alkaline earth metal ozonide compounds have also become known. For instance, magnesium ozonide complexes have been isolated in a low-temperature argon matrix.Wang, Guanjun & Gong, Yu & Zhang, Qingqing & Zhou, Mingfei. "Formation and Characterization of Magnesium Bisozonide and Carbonyl Complexes in Solid Argon"
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Covalent singly bonded structures
Phosphite ozonides, , are used in the production of singlet oxygen. They are made by ozonizing a phosphite ester in dichloromethane at low temperatures, and decompose to yield singlet oxygen and a phosphate ester: (2025). 9780131755536, Pearson. ISBN 9780131755536
Molozonides
are formed by the addition reaction between ozone and . They are rarely isolated during the course of the ozonolysis reaction sequence. Molozonides are unstable and rapidly convert to the trioxolane ring structure with a five-membered C–O–O–C–O ring. Ozonolysis mechanism on Organic Chemistry Portal site They usually appear in the form of foul-smelling oily liquids, and rapidly decompose in the presence of water to carbonyl compounds: , , .
See also
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