2023-05-17
Isolation, Structural and Physical Characterization as well as Reactivity of Persistent Acenium Radical Cation Salts
2023-05-17 • Malte Sellin, Matthis Seiler, Maximilian Mayländer, Konstantin Kloiber, Valentin Radke, Stefan Weber, Sabine Richert, Ingo Krossing
Abstract The unsubstituted acenium radical cations (ARCs) are extremely sensitive and were hitherto only studied in situ, i. e. in the gas phase, as dilute solutions in strong acids or by matrix isolation spectroscopy at about 10 K. In this study, room temperature stable ARC salts with the weakly coordinating anion [F{Al(OR F ) 3 } 2 ] − (OR F =−OC(CF 3 ) 3 ) supported by the weakly coordinating solvent 1,2,3,4‐tetrafluorobenzene (TFB) were prepared and structurally, electrochemically and spectroscopically charact…