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With the aid of quantum chemistry calculations, we propose a mechanism in which a sudden double ionization of benzene and the subsequent electrostatic attraction between the dication and the anion form a stable covalently bonded C<jats:sub>6<\/jats:sub>H<jats:sub>6<\/jats:sub>O<jats:sub>2<\/jats:sub><jats:sup>+<\/jats:sup> molecule, that evolves towards the formation of benzene-diol conformers. 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