Proton‐Coupled Electron Transfer Induced by Near‐Infrared Light

A proton‐coupled electron transfer reaction induced by near‐infrared light (>710 nm) has been achieved using a dye that shows intense NIR absorption property and electron/proton‐accepting abilities. The developed system generated long‐lived radical species and showed high reversibility and robustness. Mechanistic investigations suggested that the rate‐determining step of the reaction involves the proton transfer process. Long live the radicals: A proton‐coupled electron transfer reaction was induced by near‐infrared light (>710 nm) using a distorted phthalocyanine anion as a key molecule. The developed system generated long‐lived radical species and showed high reversibility and robustness.