Electrochemical potential gap in radicals: Why organic radicals do not disproportionate in solution?

• Published in: Electrochimica acta Vol. 460; p. 142632
• Main Authors: Levitskiy, Oleg A., Sentyurin, Vyacheslav V., Bogdanov, Alexey V., Magdesieva, Tatiana V.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 20.08.2023
• Subjects: Coulomb integral; Electrochemical potential gap; Electron transfer; Radicals; Spin density; Electron transfer; Spin density; Coulomb integral; Electrochemical potential gap; Radicals

The physical origin of the electrochemical potential gap (ΔE0 = E0Ox − E0Red) in radicals is discussed. It was shown that the EC gap in radicals is well approximated by two-electron Coulomb repulsion between the unpaired electron of the parent radical and an additional electron appeared in the SOMO...