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Dioxygen difluoride information


Dioxygen difluoride
Stick model of dioxygen difluoride
Stick model of dioxygen difluoride
Spacefill model of dioxygen difluoride
Spacefill model of dioxygen difluoride
Names
Preferred IUPAC name
Dioxygen difluoride
Systematic IUPAC name
Fluorooxygen hypofluorite
Other names
  • Monofluorooxygenyl hypofluorite
  • Peroxydifluoride
  • Oxygen perfluoride
  • Oxyfluoryl hypofluorite
  • Fluorine peroxide
  • FOOF
Identifiers
CAS Number
  • 7783-44-0 checkY
3D model (JSmol)
  • Interactive image
Abbreviations FOOF
ChEBI
  • CHEBI:47866 checkY
ChemSpider
  • 109870 checkY
Gmelin Reference
1570
PubChem CID
  • 123257
UNII
  • XWQ158QF24 checkY
CompTox Dashboard (EPA)
  • DTXSID70228451 Edit this at Wikidata
InChI
  • InChI=1S/F2O2/c1-3-4-2 checkY
    Key: REAOZOPEJGPVCB-UHFFFAOYSA-N checkY
  • InChI=1/F2O2/c1-3-4-2
    Key: REAOZOPEJGPVCB-UHFFFAOYAK
SMILES
  • FOOF
Properties
Chemical formula
O
2
F
2
Molar mass 69.996 g·mol−1
Appearance orange as a solid
red as a liquid
Density 1.45 g/cm3 (at b.p.)
Melting point −154 °C (−245 °F; 119 K)
Boiling point −57 °C (−71 °F; 216 K) extrapolated
Solubility in other solvents decomposes
Thermochemistry
Heat capacity (C)
62.1 J/(mol·K)
Std molar
entropy (S298)
277.2 J/(mol·K)
Std enthalpy of
formation fH298)
19.2 kJ/mol
Gibbs free energy fG)
58.2 kJ/mol
Related compounds
Related compounds
  • O
    3
    F
    2
  • H
    2
    O
    2
  • OF
    2
  • FClO
    2
  • Cl
    2
    O
    2
  • S
    2
    Cl
    2
  • S
    2
    F
    2
Hazards
GHS labelling:
Pictograms
GHS03: OxidizingGHS05: CorrosiveGHS06: ToxicGHS09: Environmental hazard
Signal word
Danger
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 4: Very short exposure could cause death or major residual injury. E.g. VX gasFlammability 0: Will not burn. E.g. waterInstability 4: Readily capable of detonation or explosive decomposition at normal temperatures and pressures. E.g. nitroglycerinSpecial hazard OX: Oxidizer. E.g. potassium perchlorate
4
0
4
OX
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)
Infobox references

Dioxygen difluoride is a compound of fluorine and oxygen with the molecular formula O2F2. It can exist as an orange-colored solid which melts into a red liquid at −163 °C (110 K). It is an extremely strong oxidant and decomposes into oxygen and fluorine even at −160 °C (113 K) at a rate of 4% per dayits lifetime at room temperature is thus extremely short.[1] Dioxygen difluoride reacts vigorously with nearly every chemical it encounters (including ordinary ice) leading to its onomatopoeic nickname FOOF (a play on its chemical structure and its explosive tendencies).[2]

  1. ^ Holleman, A. F.; Wiberg, E. (2001). Inorganic Chemistry. Academic Press. ISBN 978-0-12-352651-9.
  2. ^ Lowe, Derek (2010-02-23). "Things I Won't Work With: Dioxygen Difluoride". www.science.org. Retrieved 2022-05-26.

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Dioxygen difluoride

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Dioxygen difluoride is a compound of fluorine and oxygen with the molecular formula O2F2. It can exist as an orange-colored solid which melts into a red...

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Oxygen fluoride

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Oxygen difluoride (OF2) Dioxygen difluoride (O2F2) Trioxygen difluoride or ozone difluoride (O3F2) Tetraoxygen difluoride (O4F2) Pentaoxygen difluoride (O5F2)...

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Difluoride

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Oxygen difluoride Dioxygen difluoride Selenoyl difluoride Sulfur difluoride Disulfur difluoride Thionyl difluoride Germanium difluoride Helium difluoride (hypothetical)...

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Xenon difluoride

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rate. In 1965, it was also synthesized by reacting xenon gas with dioxygen difluoride. XeF 2 is soluble in solvents such as BrF 5, BrF 3, IF 5, anhydrous...

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Dioxygen monofluoride

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decomposition of dioxygen difluoride: O2F2 → F + O2F F + F → F2 Photolysis of F2 and O2 dilute in argon: F2 → 2F F + O2 → O2F Dioxygen monofluoride is...

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Tetraoxygen difluoride

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Tetraoxygen difluoride can be prepared in two steps. In the first step, a photochemically generated fluorine atom reacts with oxygen to form the dioxygen fluoride...

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Oxygen compounds

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(elemental, hypofluorous acid), +1⁄2 (dioxygenyl), +1 (dioxygen difluoride), and +2 (oxygen difluoride). Oxygen is reactive and will form oxides with all...

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List of chemical compounds with unusual names

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2007-08-15. Derek, Lowe (2010-02-23). "Things I Won't Work With: Dioxygen Difluoride". In the Pipeline. Retrieved 2019-04-02. Sam Kean (2011), The Disappearing...

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Oxygen

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(elemental, hypofluorous acid), +1/2 (dioxygenyl), +1 (dioxygen difluoride), and +2 (oxygen difluoride). Water (H 2O) is an oxide of hydrogen and the most...

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Chlorine trifluoride

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the highly exothermic nature of the reaction. Chlorine fluoride Dioxygen difluoride List of stoffs ^a Using data from Economic History Services and The...

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Hydrogen peroxide

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compounds Related compounds Water Ozone Hydrazine Hydrogen disulfide Dioxygen difluoride Except where otherwise noted, data are given for materials in their...

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FOOF

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microprocessors Foof (artist), former drummer with The Bloodhound Gang Dioxygen difluoride, a chemical compound with the formula FOOF This disambiguation page...

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Dioxygenyl

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and hexafluorophosphate salts may be prepared by the reaction of dioxygen difluoride with boron trifluoride or phosphorus pentafluoride at −126 °C: 2...

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List of gases

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(Heptafluoropropyl)carbonimidic difluoride 378-00-7 Pentafluoroethyl carbonimidic difluoride 428-71-7 (Trifluoromethyl)carbonimidic difluoride 371-71-1 CF3N=CF2...

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List of inorganic compounds

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Erbium(III) oxide – Er2O3 Europium(III) oxide – Eu2O3 Oxygen difluoride – OF2 Dioxygen difluoride – O2F2 Francium oxide – Fr2O Gadolinium(III) oxide – Gd2O3...

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Radon

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SbF− 6, TaF− 6, and BiF− 6 are known. Radon is also oxidised by dioxygen difluoride to RnF 2 at 173 K (−100 °C; −148 °F). Radon oxides are among the...

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Neptunium

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B.; Kinkead, S. A.; Swanson, B. I.; et al. (1998). "Reaction of Dioxygen Difluoride with Neptunium Oxides and Fluorides". Journal of Alloys and Compounds...

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Plutonium hexafluoride

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hexafluoride at near–room-temperatures was achieved through the use of dioxygen difluoride. Hydrogen fluoride is not sufficient: 42  even though it is a powerful...

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Radon compounds

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SbF− 6, TaF− 6, and BiF− 6 are known. Radon is also oxidised by dioxygen difluoride to RnF 2 at 173 K (−100 °C; −148 °F). Radon oxides are among the...

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Glossary of chemical formulae

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Oxide O2 dioxygen 7782-44-7 O2− superoxide ion 11062-77-4 O22− peroxide ion 14915-07-2 OF2 oxygen difluoride 7783-41-7 O2F2 dioxygen difluoride 7783-44-0...

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Chlorine trifluoride dioxide

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trifluoride dioxide can be by a reaction of chlorine monofluoride with dioxygen difluoride: ClF + O2F2 → ClO2F3 Alternatively it can be made by a reaction of...

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Dioxygenyl hexafluoroplatinate

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compound containing this cation. It can be produced by the reaction of dioxygen with platinum hexafluoride. The fact that PtF 6 is strong enough to oxidise...

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Neptunium compounds

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B.; Kinkead, S. A.; Swanson, B. I.; et al. (1998). "Reaction of Dioxygen Difluoride with Neptunium Oxides and Fluorides". Journal of Alloys and Compounds...

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Argon compounds

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argon clusters are transparent to visible light. ArO* is also formed when dioxygen trapped in an argon matrix is subjected to vacuum ultraviolet. It can be...

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Chromium pentafluoride

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liquid at room temperature with a melting point of −23 °C. Chromium difluoride Chromium trifluoride Chromium tetrafluoride Perry, Dale L. (2011). Handbook...

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Covalent bond

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bonds, which otherwise are equivalent. Certain molecules such as xenon difluoride and sulfur hexafluoride have higher co-ordination numbers than would be...

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