Chloryl fluoride
Template:Chembox Chloryl fluoride is the chemical compound with the formula Template:Chem2. This compound is a gas boiling at −6 °C. It is commonly encountered as side-product in reactions of chlorine fluorides with oxygen sources.[1] It is the acyl fluoride of chloric acid.
Preparation
Template:Chem2 was first reported by Schmitz and Schumacher in 1942, who prepared it by the fluorination of [[chlorine dioxide|Template:Chem2]].[2] The compound is more conveniently prepared by reaction of sodium chlorate and chlorine trifluoride[3] and purified by vacuum fractionation, i.e. selectively condensing this species separately from other products.
Structure
In contrast to [[Dioxygen difluoride|Template:Chem2]], Template:Chem2 is a pyramidal molecule as 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-O-F compound perchloryl fluoride, Template:Chem2, is tetrahedral. The related bromine compound bromyl fluoride (Template:Chem2) adopts the same structure as Template:Chem2, whereas iodyl fluoride (Template:Chem2) forms a polymeric substance under standard conditions.[4]
Precautions
Rocket fuel chemist John Drury Clark reported in his book Ignition! that chloryl fluoride "is indecently reactive, and the hardest to keep of all the CI-O-F compounds, since it apparently dissolves the protective metal fluoride coatings that make the storage of Template:Chem2 comparatively simple."[5]
References
- ↑ Christe, K. O.; Wilson, R. D.; Schack, C. J. "Chloryl fluoride" Inorganic Syntheses, 1986, volume 24, pages 3–5. Template:ISBN https://onlinelibrary.wiley.com/doi/10.1002/9780470132555.ch2
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