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perchloryl fluoride : ウィキペディア英語版
perchloryl fluoride

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Perchloryl fluoride is a reactive gas with the chemical formula . It has a characteristic sweet odor〔 that resembles gasoline and kerosene. It is toxic and is a powerful oxidizing and fluorinating agent. It is the acid fluoride of perchloric acid.
In spite of its small enthalpy of formation (Δ''H''fO = −5.7), it is stable, decomposing only at 400 °C.〔 It is quite reactive towards reducing agents and anions, however, with the chlorine atom acting as an electrophile.〔 It reacts explosively with reducing agents such as amides, metals, hydrides, etc. Its hydrolysis in water occurs very slowly, unlike that of chloryl fluoride.
==Synthesis and chemistry==

Perchloryl fluoride is produced primarily by the fluorination of perchlorates. Antimony pentafluoride is a commonly used fluorinating agent:〔
: + 3 HF + 2 → + + 2
reacts with alcohols to produce alkyl perchlorates, which are extremely shock-sensitive explosives.〔 Using Friedel-Crafts catalysts, it can be used for introducing the group into aromatic rings via electrophilic aromatic substitution.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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