AskDefine | Define ozonide

Dictionary Definition

ozonide n : any of a class of unstable chemical compounds resulting from the addition of ozone to a double bond in an unsaturated compound

User Contributed Dictionary



  1. the univalent anion, O3-, derived from ozone
  2. any dark red salt of this anion and a metal
  3. any of a number of explosive organic compounds containing a -O-O-O- group
  4. any of a class of heterocycles, containing two carbon atoms (in positions 3 and 5) and three oxygen atoms (in positions 1, 2 and 4) produced by the reaction of ozone with a carbon to carbon double bond; the 1,2,4-trioxolanes

Extensive Definition

Ozonide is an unstable, reactive polyatomic anion O3−, derived from ozone, or an organic compound similar to organic peroxide formed by a reaction of ozone with an unsaturated compound.

Inorganic ozonides

Inorganic ozonides are dark red ionic compounds containing the reactive O3− anion. The anion has the V shape of the ozone molecule.
Inorganic ozonides are formed by burning potassium or heavier alkali metals in ozone, or by treating the alkali metal hydroxide with ozone; if potassium is left undisturbed in air for years it accumulates a covering of superoxide and ozonide. They are very sensitive explosives that have to be handled at low temperatures in an atmosphere comprised of an inert gas. Lithium and sodium ozonide are extremely unstable and must be prepared by low-temperature ion exchange starting from CsO3, and the pure solids cannot be isolated.
Inorganic ozonides are being investigated as promising sources of oxygen in chemical oxygen generators.

Organic ozonides

Organic ozonides are more explosive cousins of the organic peroxides and contain a covalently bonded ozonide group, -O-O-O-. They usually appear in the form of foul-smelling oily liquids. Their main use is in determining the structure of chemical compounds. As intermediates of ozonolysis, they are formed by an addition reaction of ozone and unsaturated compounds, and rapidly decompose to carbonyl compounds - aldehydes, ketones, peroxides.

See also

ozonide in Arabic: أوزونيد
ozonide in German: Ozonid
ozonide in French: Ozonide
ozonide in Low German: Ozonid
ozonide in Polish: Ozonki
ozonide in Russian: Озонид
ozonide in Finnish: Otsonidi
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