Chloryl fluoride

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Chloryl fluoride
Image:Chloryl fluoride.jpg
Systematic name Chloryl fluoride
Other names xxx, xxx
Molecular formula FClO2
Molar mass 86.4502 g/mol
Density 3.534×10-3 g/cm3
Solubility (water) x.xx g/l
Melting point -15 °C
Boiling point -6 °C
CAS number [13637-83-7]
Disclaimer and references

Chloryl fluoride is the chemical compound with the formula FClO2. It is commonly encountered side-product in reactions of chlorine fluorides with oxygen sources.[1]

[edit] Preparation

FClO2 was first reported by Schmitz and Schumacheb in 1942, who prepared it by the fluorination of ClO2. [2] The compound is more conveniently prepared by treatment of sodium chlorate and chlorine trifluoride and purified by vacuum fractionation, i.e. selectively condensing this species separately from other products. This species is a gas boiling at -6 C:

6 NaClO3 + 4 ClF3 → 6 FClO2 + 2 Cl2 + 3 O2

[edit] Structure

In contrast to F2O2, FClO2 is a pyramidal molecule. This structure is predicted by VSEPR. The differing structures reflects the greater tendency of chlorine to exist in positive oxidation states with oxygen and fluorine ligands. The related Cl-F-O compound perchloryl fluoride, FClO3, is tetrahedral.

[edit] References

  1. ^ Chrisie, K. O.; Wilson, R. D.; Schack, C. J. "Chloryl fluoride" Inorganic Syntheses, 1986, volume 24, pages 3-5. ISBN 0-471-83441-6
  2. ^ Schmitz, H.; Schumacheb, H. J. "Über eine neue Reaktion des Chlordioxyds. Die Bildung einer Verbindung der Formel ClO2F" Zeitschrift für anorganische und allgemeine Chemie 1942, Volume 249, Pages 238 - 244. DOI 10.1002/zaac.19422490302