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Heteronuclear dimers oxidation

The oxidation of [Cr(SH)(H20)5]2+ by I2 or Fe3+ under aerobic conditions in acid solutions gives the disulfido-bridged complexes [(H20)5CrS2Cr(H20)5]4+ and [(H20)sCr(S2H)Fe-(H20)5]4+ respectively (Scheme 100).967,968 The latter complex can also be obtained by substitution of chromium(III) in the former complex by iron(II) under acid conditions. The product distribution in the iron(UI) oxidation of [Cr(SH)(H20)5]2+ is pH dependent and at 298 K, pH = 1 the heteronuclear dimer [(H20)5Cr(S2H)Fe(H20)5]4+ constitutes over 80% of the product mixture. The rate of this reaction shows a [H+] 1 dependence, an observation consistent with [CrS(H20)5]+ being the kinetically active species. [Pg.882]

See other pages where Heteronuclear dimers oxidation is mentioned: [Pg.1307]    [Pg.226]    [Pg.318]    [Pg.318]    [Pg.2721]    [Pg.3146]    [Pg.3772]    [Pg.293]    [Pg.13]    [Pg.292]    [Pg.285]    [Pg.381]    [Pg.138]    [Pg.765]    [Pg.327]    [Pg.234]   
See also in sourсe #XX -- [ Pg.292 ]



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Dimers oxidation

Heteronuclear dimers

Oxidative dimerization

Oxidative dimerizations

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