Rubidium superoxide

Rubidium superoxide

Names
Other names Rubidium hyperoxide, rubidio superoxide
Identifiers
CAS Number	12137-25-6
3D model (JSmol)	Interactive image
CompTox Dashboard (EPA)	DTXSID201315494
InChI InChI=1S/O2.Rb/c1-2;/q-1;+1 Key: AFEOXRVICKHWAE-UHFFFAOYSA-N
SMILES O=[O-].[Rb+]
Properties
Chemical formula	RbO2
Molar mass	117.466 g·mol−1
Appearance	Bright yellow
Structure
Crystal structure	Distorted CaC2 structure
Related compounds
Other cations	Lithium superoxide Sodium superoxide Potassium superoxide Caesium superoxide
Related rubidium oxides	Rubidium suboxide Rubidium oxide Rubidium sesquioxide Rubidium peroxide Rubidium ozonide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Rubidium superoxide, rubidio superoxide or rubidium hyperoxide is a chemical compound with the chemical formula RbO₂. Rubidium forms superoxide under certain conditions like direct contact with oxygen. In terms of oxidation states, the negatively charged superoxide and positively charged rubidium give it a structural formula of Rb⁺[O₂]⁻.