Dioxygenyl

The formation of a new class of compounds, dioxygenyls, containing 0 2> is thought to take place via an OOF iatermediate (65). 

Hexa/luorobenzene, perfluoromethylbcnzene, and octafluoronaphthalene are oxidized to the corresponding cation salts by dioxygenyl hexafluoroarsenate [45] (equation 38) Salts of monocyclic perlluoroaromatics are unstable above 15 °C, whereas that of octafluoronaphthalene is indefmitely stable at room temperatures... 

Dioxygenyl tetrafluoroborate Organic materials Oxygen (Liquid) Hydrocarbons, or Liquefied gases Trioxygen difluoride Various materials... 

Dioxygenyl tetrafluoroborate See Dioxygenyl tetrafluoroborate Organic materials... 

Stein, L., Removal of Xenon and Radon from Contaminated Atmospheres with Dioxygenyl Hexafluoroantimonate, O SbF, Nature 243, No. 5401, 30-32 (May 4, 1973). 

The hexafluoroplatinate(V) anion was first obtained (58) as the dioxygenyl salt, [O2] [PtFe], by the action of an oxygen-fluorine mixture on platinum... 

The product contains the 02+ (dioxygenyl) cation, which is close enough to the size of K+ that 02PtF6 and KPtFs are isomorphous. Other compounds are known that contain the 02+ ion, including 02AsF5 and 02BF4, which can be prepared by the reaction... 

DIOXYGENYL POLYFLUOROSALTS IGNITION SOURCES INORGANIC AZIDES... 

Oxygen has an oxidation number of +2 in some fluorides [25,] which also stabilize the dioxygenyl cation 02" " [26], redox states which are not stable, of course, in solutions. The common redox reactions... 

Radical cations can be generated by many chemical oxidizing reagents, including Brpnsted and Lewis acids, the halogens, peroxide anions or radical anions, metal ions or oxides, nitrosonium and dioxygenyl ions, stable aminium radical cations, semiconductor surfaces, and suitable zeolites. In principle, it is possible to choose a reagent with a one-electron redox potential sufficient for oxidation-reduction, and a two-electron potential insufficient for oxidation-reduction of the radical ion. 

Now that we have seen that dioxygenyl compounds can be prepared, we might be interested in preparing the exotic and intriguing compound dioxygenyl super-oxide, OjOJ. Using methods similar to those discussed above, we can set up a... 

Perform a calculation similar to that on page 127 for the formation of dioxygenyl hexafiuoropfalinaie(V) ... 

Dioxygenyl superoxide is not a likely candidate for successful synthesis. 

Palladium(V) and palladium(III) complexes have also been reported. Two complexes of palladium(V) have been isolated (02)[PdF6] and Na[PdF6]. These were formed by the oxidation of PdF4 in HF with KrF2 in the presence of 02 and NaF respectively.3 The dioxygenyl salt may also be prepared by the reaction of palladium powder with an F2/02 mixture at 320 °C and 60 000 psi. The Raman spectrum of [PdF6] is comparable with other MF6 ions, showing bands for Vi, v2 and v3 at 643, 570 and 268 cm-1. 

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