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Chromyl halides

Because the highest oxidation state of Cr is + 6, it forms oxyhalides that have the formula Cr02X2 and are known as chromyl halides. However, in the case of the fluorine compound, CrOF4 is also known, as well as some oxyhalides having the formula CrOX3. Some reactions that yield chromyl halides are the following ... [Pg.386]

In analogy to S02C12 (sulfuryl chloride) and P0C13 (phosphoryl chloride), compounds having the formula Cr02X2 are known as chromyl halides. The fluorides and chlorides are prepared by the reactions... [Pg.431]

If NaCl or KC1 is substituted for CaF2 in the latter equation, Cr02Cl2 is produced. The reactions of chromyl halides with water are typical of covalent halides, and they hydrolyze readily ... [Pg.431]

Chromium dioxide, 928 Chromium fluoride, 932 Chromium tetrafluoride, 927 Chromium trioxide, 941 Chromyl bromide, 940 Chromyl chloride, 940 Chromyl halides, 933, 935, 938 Chromyl nitrate, 940 Chromyl perchlorate, 940 CitratoteUurates, 303 Cobalt complexes boron ligands, 99 Cobalt(ll) complexes reduction... [Pg.3293]

See Chromyl chloride Non-metal halides Oxygen (Gas) Phosphorus tribromide Ruthenium(VIII) oxide Phosphorus tribromide... [Pg.123]

See Chromyl chloride Non-metal halides Dimethyl sulfoxide... [Pg.1441]

See Chromium pentafluoride Phosphorus trichloride Chromyl chloride Non-metal halides Fluorine Phosphorus halides Iodine chloride Phosphorus trichloride... [Pg.1456]

In this state, chromium compounds are usually coloured yellow or red (but due to charge transfer (p. 60) and not to the presence of d electrons on the chromium ion). The only halide known is the unstable chromium(VI) fluoride CrF6, a yellow solid. However, oxide halides are known, for example Cr02Cl2 ( chromyl chloride ), formed as a red vapour when concentrated sulphuric acid is added to a chromate(VI) (or dichromate) mixed with a chloride ... [Pg.377]

Metal Halides. Phosphorus ignites in contact with antimony pentafluoride and explodes with chromyl chloride when moist.17... [Pg.460]

Oxidation of alcohols typically proceeds in 4-12 h giving excellent yields of carbonyl products. Chromyl chloride, C1O2CI2, like other Cr species, is a vigorous oxidant of organic compounds. It may be, however, tamed as a silica gel adsoibate. This reagent combination is also a good oxidant of alcohols, alkenes and alkynes, that will tolerate halides, esters, lactones, ethers and nitriles. The shelf life of the reagent t pears to be indefinite in the diy state. [Pg.845]

Oxidation with chromium(VI) oxide, t-butyl chromate or chromyl chloride may also take place at the allylic position with the formation of unsaturated ketones. The alkene may enhance the rate of displacement of an allylic halide, and the reaction may even take place with the participation of the double bond, so leading to an allylic rearrangement (Scheme 3.25). [Pg.75]

Double Gompounds with the Halides of Phosphorus.— When chromic chloride or chromyl chloride is heated with excess of phosphorus pentachloride in a sealed tube, a violet crystalline compound, having the composition PClj.CrClg, results. ... [Pg.90]

See other pages where Chromyl halides is mentioned: [Pg.105]    [Pg.105]    [Pg.377]    [Pg.136]    [Pg.107]    [Pg.207]    [Pg.701]    [Pg.701]    [Pg.933]    [Pg.934]    [Pg.935]    [Pg.938]    [Pg.939]    [Pg.940]    [Pg.382]    [Pg.1033]    [Pg.210]    [Pg.527]    [Pg.527]    [Pg.66]    [Pg.669]    [Pg.423]    [Pg.207]    [Pg.737]    [Pg.1441]    [Pg.606]    [Pg.871]    [Pg.940]   
See also in sourсe #XX -- [ Pg.386 ]

See also in sourсe #XX -- [ Pg.933 , Pg.935 , Pg.938 ]

See also in sourсe #XX -- [ Pg.3 , Pg.933 , Pg.935 , Pg.938 ]



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