The radical cations (RCs) of bridged X–(CH2)n–Y bifunc- tional compounds (X and Y are functional groups) represent an interesting class of model systems for molecular electronics, radiation chemistry of macromolecules and radiobiology. It was shown1,2 that symmetrical RCs of this kind (X = Y) usually exhibited spin and charge delocalization, at least, at n < 3. A delocalized structure was also found3 in methoxyacetone RC, where X and Y are different, but the ionization ...