α,α′-diamino- p-tetrafluoroquinodimethane: stability of one- and two-electron oxidized species and fixation of molecular oxygen

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Date
2021Author
Mahata, AlokChrysochos, Nikolas
Krummenacher, Ivo
Chandra, S.
Braunschweig, H.
Schulzke, C.
Sarkar, B.
Yıldız, Cem Burak
Jana, A.
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Herein, we report the synthesis, characterization, and reactivity of α,α′-diamino-p-tetrafluoroquinodimethane, a p-tetrafluorophenylene-bridged monosubstituted carbene-based Thiele's hydrocarbon A. The compound exhibits a reversible two-step one-electron oxidation with a marginally stable radical cation state B. The in situ formation of the radical cation could be confirmed by electron paramagnetic resonance spectroscopy.