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Dichlorine trioxide

Names
IUPAC name dichlorine trioxide
Other names chlorine trioxide chlorine chlorate chlorine(I,V) oxide
Identifiers
CAS Number	17496-59-2
3D model (JSmol)	Interactive image
ChemSpider	11514723
PubChem CID	167661
CompTox Dashboard (EPA)	DTXSID90938601
InChI InChI=1S/Cl2O3/c1-5-2(3)4Key: SAUMVKNLVQDHMJ-UHFFFAOYSA-N InChI=1/Cl2O3/c1-5-2(3)4Key: SAUMVKNLVQDHMJ-UHFFFAOYAS
SMILES ClOCl(=O)=O
Properties
Chemical formula	Cl2O3
Molar mass	118.903 g/mol
Appearance	dark brown solid
Melting point	explodes below 0 °C
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). N verify (what is  ?) Infobox references

Dichlorine trioxide, Cl₂O₃, is a chlorine oxide. It is a dark brown solid discovered in 1967 which is explosive even below 0 °C. It is formed by the low-temperature photolysis of ClO₂ and is formed along with Cl₂O₆, Cl₂ and O₂. Its structure is believed to be OCl−ClO₂ with possible isomers such as Cl−O−ClO₂. The isomer having a structure of OCl–O–ClO would be the theoretical anhydride of chlorous acid.

References

1. Lide, David R. (1998). Handbook of Chemistry and Physics (87 ed.). Boca Raton, Florida: CRC Press. pp. 4–51. ISBN 0-8493-0594-2.
2. N. N. Greenwood and A. Earnshaw (1997). Chemistry of the Elements. Butterworth-Heinemann. ISBN 978-0750633659.
3. Egon Wiberg, Arnold Frederick Holleman (2001) Inorganic Chemistry, Elsevier ISBN 0-12-352651-5

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