per-Alkoxy-pillar5arenes as Electron Donors: Electrochemical Properties of Dimethoxy-Pillar5arene and Its Corresponding Rotaxane

摘要

1,4-dimethoxypillar[5]arene undergoes reversible multielectron oxidations forming stable radical cations, a property retained when incorporated in [2]rotaxanes, suggesting that pillar[5]arenes can be employed as viable, yet unreported, electron donors.