Electron-Transfer Reactions from Hydroquinone Dianions to 10-Methylacridinium Ion and a Cobalt(III) Porphyrin

Article abstract of DOI:10.1246/bcsj.65.715

Electron transfer from various hydroquinone dianions (X-Q^2-) to 10-methylacridinium ion (AcrH⁺) and ⁺ (H₂tpp=tetraphenylporphyrin) occurs efficiently in deaerated MeCN to yield 10,10'-dimethyl-9,9'-biacridine <(AcrH)₂> and , respectively.The electron transfer results in the one-electron or two-electron oxidation of X-Q^2-, depending on the one-electron oxidation potentials of X-Q^2- and X-Q^-..