Protonated ozone

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

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]

References

^ Ceotto, Michele; Gianturco, Franco A.; Hirst, David M. (1999). "Protonated Ozone: Structure, Energetics, and Nonadiabatic Effects". J. Phys. Chem. A. 103 (48): 9984–9994. Bibcode:1999JPCA..103.9984C. doi:10.1021/jp9923769.
^ Cacace, Fulvio; Speranza, Maurizio (8 July 1994). "Protonated Ozone: Experimental Detection of O₃H⁺ and Evaluation of the Proton Affinity of Ozone". Science. 265 (5169): 208–209. Bibcode:1994Sci...265..208C. doi:10.1126/science.265.5169.208. PMID 17750658. S2CID 29517377.
^ Cacace, Fulvio; de Petris, Giulia; Pepi, F.; Troiani, Anna (2 July 1999). "Experimental Detection of Hydrogen Trioxide". Science. 285 (5424): 81–82. doi:10.1126/science.285.5424.81. PMID 10390365.

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