Hydrogen peroxide, disproportionation

Arginase, 46 306-307 binuclearity, 46 325-327 EPR spectroscopy, 46 389 hydrogen peroxide disproportionation, 46 326-327... 

Figure 2. The four-step mechanism for hydrogen peroxide disproportionation by the Mn catalse proposed by Penner-Hahn (22) is shown above the solid line. Our proposed mechanism for the inactivation of the Mn catalase by hydroxylamine in the presence of hydrogen peroxide is shown below the solid line.

Figure 11. (A) Rate of hydrogen peroxide disproportionation vs. hydrogen...

Figure 12. Plot of the hydrogen peroxide disproportionation rate vs. the concentration of Na2[Mn2(2-OH-(5-Cl-sal)pn)]2 in acetonitrile.

Iron(III) is then reduced back to iron(II), a peroxide radical and a proton by the same hydrogen peroxide (disproportionation). 

Scheme 19. Proposed mechanism of hydrogen peroxide disproportionation by Mn"(2-OHbenzimpn)(/n-OAc) 22 . [Reproduced with permission from (439). Copyright 1994 the American Chemical Society.]...

Scheme 23. A proposed mechanism of hydrogen peroxide disproportionation by [Mn (salpn)(ju.-0)]2. [Reproduced with permission from (27). Copyright 1992 WILEY-VCH Verlag.l...

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