Rubidium superoxide

Rubidium superoxide
Names
	Other names Rubidium hyperoxide
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 or rubidium hyperoxide is a chemical compound with the chemical formula RbO₂. In terms of oxidation states, the negatively charged superoxide and positively charged rubidium give it a structural formula of Rb⁺[O₂]⁻.^[2]

^ Astuti, Fahmi; Miyajima, Mizuki; Fukuda, Takahito; Kodani, Masashi; Nakano, Takehito; Kambe, Takashi; Watanabe, Isao (2019). "Synthesis and Characterization of Magnetic Rubidium Superoxide, RbO₂". Materials Science Forum. 966. Trans Tech Publications, Ltd.: 237–242. doi:10.4028/www.scientific.net/msf.966.237. ISSN 1662-9752.
^ ^a ^b Labhart, M.; Raoux, D.; Känzig, W.; Bösch, M. A. (1979-07-01). "Magnetic order in 2p-electron systems: Electron paramagnetic resonance and antiferromagnetic resonance in the alkali hyperoxides KO₂, RbO₂, and CsO₂". Physical Review B. 20 (1). American Physical Society (APS): 53–70. doi:10.1103/physrevb.20.53. ISSN 0163-1829.

[1] Astuti, Fahmi; Miyajima, Mizuki; Fukuda, Takahito; Kodani, Masashi; Nakano, Takehito; Kambe, Takashi; Watanabe, Isao (2019). "Synthesis and Characterization of Magnetic Rubidium Superoxide, RbO₂". Materials Science Forum. 966. Trans Tech Publications, Ltd.: 237–242. doi:10.4028/www.scientific.net/msf.966.237. ISSN 1662-9752.

[Labhart1979-2] Labhart, M.; Raoux, D.; Känzig, W.; Bösch, M. A. (1979-07-01). "Magnetic order in 2p-electron systems: Electron paramagnetic resonance and antiferromagnetic resonance in the alkali hyperoxides KO₂, RbO₂, and CsO₂". Physical Review B. 20 (1). American Physical Society (APS): 53–70. doi:10.1103/physrevb.20.53. ISSN 0163-1829.

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