Notizen: Spectroscopic and Kinetic Characteristics of HȮ2 and Ȯ2 - Species Studied by Pulse Radiolysis

Abstract
The formation and decay of HȮ2 and Ȯ2 - transients was reinvestigated using oxygenated aqueous t-butanol solutions in the pH range from 1.5 to about 8. The ob­tained spectroscopic and kinetic characteristics of both superoxide radical forms are: for HȮ2 λmax = 230 nm (ε230 = 130 m2 mol-1), 2k (HȮ2 + HȮ2) = (3.7 ± 0.2) x 106 dm3 mol-1 and Ȯ2 - λmax = 245 nm (ε245 = 215 m2 mol-1), 2k (Ȯ2 - + Ȯ2 -) < 10 dm3 mol-1 s-1.

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