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Oxygen difluoride is a chemical compound with the formula OF 2. As predicted by VSEPR theory, the molecule adopts a bent molecular geometry. [citation needed] It is a strong oxidizer and has attracted attention in rocketry for this reason. [5] With a boiling point of −144.75 °C, OF 2 is the most volatile (isolable) triatomic compound. [6]
Oxygen difluoride. A common preparative method involves fluorination of sodium hydroxide: 2 F 2 + 2 NaOH → OF 2 + 2 NaF + H 2 O. OF 2 is a colorless gas at room temperature and a yellow liquid below 128 K. Oxygen difluoride has an irritating odor and is poisonous. [3] It reacts quantitatively with aqueous haloacids to give free halogens:
Compounds containing oxygen in other oxidation states are very uncommon: − 1 ⁄ 2 (superoxides), − 1 ⁄ 3 , 0 (elemental, hypofluorous acid), + 1 ⁄ 2 , +1 (dioxygen difluoride), and +2 (oxygen difluoride). Oxygen is reactive and will form oxides with all other elements except the noble gases helium, neon, argon and krypton. [1]
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The oxygen (0) atom is the root of hypofluorous acid's strength as an oxidizer, in contrast to the halogen (+1) atom in other hypohalic acids. This alters the acid's chemistry. Where reduction of a general hypohalous acid reduces the halogen atom and yields the corresponding elemental halogen gas,
Dioxygen monofluoride is a binary inorganic compound radical of fluorine and oxygen with the chemical formula O 2 F. [ 1 ] [ 2 ] [ 3 ] The compound is stable only at low temperature. This is one of many known oxygen fluorides .
Pentaoxygen difluoride is an oxidizing agent. At 90 K, the compound looks like a reddish-brown liquid and as an oil at 77 K. [3] At 77 K, the compound is insoluble in liquid N 2, soluble in liquid O 2 and CH 4. At 65 K, it is soluble in liquid OF 2. [3]
The compound can also be prepared from a mixture of fluorine and oxygen gases in the presence of a platinum sponge at 450 °C, and from oxygen difluoride (OF 2) above 400 °C: [6] 6 OF 2 + 2 Pt → 2 [O 2][PtF 6] + O 2. At lower temperatures (around 350 °C), platinum tetrafluoride is produced instead of dioxygenyl hexafluoroplatinate. [6]