Stable N,N’-Diarylated Dihydrodiazaacene Radical Cations |
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| Authors: | Gaozhan Xie N Maximilian Bojanowski Victor Brosius Thomas Wiesner Dr Frank Rominger Dr Jan Freudenberg Prof Dr Uwe H F Bunz |
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| Institution: | Organisch-Chemisches Institut, Ruprecht-Karls Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany |
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| Abstract: | Three stable N,N’-diarylated dihydroazaacene radical cations were prepared by oxidation of neutral N,N’-diarylated dihydroazaacenes synthesized via palladium-catalyzed Buchwald-Hartwig aminations of aryl iodides with N,N’-dihydroazaacenes. Both neutral as well as oxidized species were investigated via UV-vis spectroscopy, single crystal analysis, and DFT calculations. All the radical cations are surprisingly stable—their absorption spectra in dichloromethane remain unchanged in ambient conditions for at least 24 hours. |
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| Keywords: | DFT calculations N N’-diaryldiazaacenes radical cation single crystal structure UV/Vis spectroscopy |
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