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Mono‐ and Dianion of a Bis(benzobuta)tetraazapentacene Derivative
Author(s) -
Ji Lei,
Hahn Sebastian,
Biegger Phillip,
Reiss Hilmar,
Han Jie,
Friedrich Alexandra,
Krummenacher Ivo,
Braunschweig Holger,
Moos Michael,
Freudenberg Jan,
Lambert Christoph,
Dreuw Andreas,
Marder Todd B.,
Bunz Uwe H. F.
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201901982
Subject(s) - chemistry , derivative (finance) , ion , electron paramagnetic resonance , absorption spectroscopy , potassium , spectroscopy , photochemistry , absorption (acoustics) , medicinal chemistry , organic chemistry , nuclear magnetic resonance , materials science , optics , physics , quantum mechanics , financial economics , economics , composite material
A bis(benzobuta)tetraazapentacene derivative was reduced to its radical anion and its dianion, using potassium [18]crown‐6 anthracenide in THF. Both reduced species were characterized by UV/Vis spectroscopy of the isolated species and by spectroelectrochemistry. Two distinct single‐crystal structures of the dianion and an EPR spectrum of the radical anion were obtained. Contrary to other azaacenes, the lowest energy absorption in the UV/Vis spectrum of the dianion is redshifted in comparison to that of the neutral compound.