Rubidium ozonide is an oxygen rich compound of rubidium.

It can be created by reacting rubidium superoxide (RbO2) with ozone (O3) in a liquid ammonia solution.

[3] The chemical forms in two crystal structures, the low temperature α-RbO3 (P21),[1] and β-RbO3 (P21/c)[4] Detailed structural analysis finds the ozonide anions are significantly off-center from the surrounding rubidium atoms.

[5] Since ozonide anion is magnetic, electron paramagnetic resonance measurements of rubidium ozonide have determined the g-values of the ozonide anion.

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