Concerted Two-Proton-Coupled Electron Transfer from Piceatannol to Electrogenerated Superoxide in N,N-Dimethylformamide
Tatsushi Nakayama,
Bunji Uno
Abstract:The reactivity of 4-[(E)-2-(3,5-dihydroxyphenyl)ethenyl]benzene-1,2-diol
(piceatannol) toward electrochemically generated superoxide radical
anion (O2
•–) was investigated
using electrochemistry and in situ controlled-potential electrolytic
electron spin resonance (ESR) measurements in N,N-dimethylformamide with density functional theory (DFT)
calculations. The quasireversible cyclic voltammogram of dioxygen/O2
•–, modified in the presence of piceatannol,
indicated that the electrogenerated O2
•– was scavenged… Show more
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