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Ozonides oxidation states

Only fluorine, atomic oxygen and FgO have higher redox potentials. The gas oxidises moist sulphur to jH2S04, raises silver(I) compounds to the 2 state and converts olefinic compounds to ozonides. The reaction 2O3 -> SOg, which is catalysed by many metals and metal oxides, is exothermic and rapid above 200°. Gaseous ozone is deeper blue than oxygen it condenses at — 112° to a dark blue liquid which freezes at —193° to a dark purple solid. Surprisingly, the liquid is not completely miscible with liquid oxygen. [Pg.355]

W. Hesse, M. Jansen and W. Schnick (1989) Progress in Solid State Chemistry, vol. 19, p. 47 - A review of alkali metal oxides, peroxides, superoxides and ozonides. [Pg.272]

The mechanism of the ozonolysis reaction of alkenes has been investigated in the gas phase and solid state using matrix isolation spectroscopy. While alkene/ozone 7C-complexes and the primary ozonides are readily observed by IR und UV/vis spectroscopy, there is no direct spectroscopic evidence for the Criegee intermediate (carbonyl O oxide) in these reactions. However, these elusive species can be synthesized and characterized via the carbene/oxygen route. Comparison of experimental and calculated spectroscopic data allows for the prediction of the spectroscopic properties of carbonyl oxides which are not accessible by this method. [Pg.200]

The mechanism of ozonolysis proceeds through initial electrophilic addition of ozone to the double bond, a transformation that yields the so-called molozonide. In this reaction, as in several others already presented, six electrons move in concerted fashion in a cyclic transition state. The molozonide is unstable and breaks apart into a carbonyl fragment and a carbonyl oxide fragment through another cychc six-electron rearrangement. Recombination of the two fragments as shown yields the ozonide. [Pg.514]


See other pages where Ozonides oxidation states is mentioned: [Pg.67]    [Pg.66]    [Pg.164]    [Pg.220]    [Pg.286]    [Pg.193]    [Pg.195]    [Pg.380]    [Pg.283]    [Pg.171]    [Pg.297]    [Pg.298]    [Pg.627]    [Pg.320]    [Pg.4]    [Pg.226]    [Pg.241]    [Pg.360]    [Pg.11]   
See also in sourсe #XX -- [ Pg.1063 ]




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