Protonated ozone

Protonated ozone is a hydrogen polyoxide having the molecular formula HO+3 (also written O₃H⁺). It is a cationic structure consisting of an ozone unit with a hydrogen atom attached to one end. This substance is proposed to exist as an intermediate in several interstellar, atmospheric,and synthetic chemical processes.^[1] It has been synthesized in mass spectrometer experiments by protonation of ozone using various strong acids.^[2] Related experiments have used it as the precursor for generating hydrogen ozonide.^[3]

Protonated ozone

Names
IUPAC name Hydroxy(oxo)oxidanium
Systematic IUPAC name Hydrotrioxygen(1+)
Identifiers
CAS Number	74241-49-9
3D model (JSmol)	Interactive image
PubChem CID	6030661
InChI InChI=1S/HO3/c1-3-2/h1H/q+1 Key: FQWSHTCXTQFHJZ-UHFFFAOYSA-N
SMILES O[O+]=O
Properties
Chemical formula	HO3+
Molar mass	49.004 g·mol−1
Conjugate base	Ozone
Related compounds
Related hydrogen polyoxides	Hydrogen trioxide Hydrogen ozonide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references