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Tetrabenzononacene: “Butterfly Wings” Stabilize the Core
Author(s) -
Müller Matthias,
Maier Steffen,
Tverskoy Olena,
Rominger Frank,
Freudenberg Jan,
Bunz Uwe H. F.
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201909614
Subject(s) - core (optical fiber) , blueshift , isolation (microbiology) , characterization (materials science) , butterfly , absorption (acoustics) , absorption spectroscopy , crystallography , chemistry , physics , optics , ecology , biology , bioinformatics , photoluminescence
In combination with bulky substituents at the core, fourfold benzannulation at the cata ‐positions stabilizes a nonacene sufficiently to allow its isolation and characterization by 1 H NMR and X‐ray analysis. The four benzo units blueshift the absorption spectrum in comparison to a solely linear nonacene, but significantly increase the stability in the solid state.