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Tetrabenzononacene: "Butterfly Wings" Stabilize the Core.

Matthias MüllerSteffen MaierOlena TverskoyFrank RomingerJan FreudenbergUwe H F Bunz
Published in: Angewandte Chemie (International ed. in English) (2019)
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.
Keyphrases
  • solid state
  • high resolution
  • magnetic resonance
  • magnetic resonance imaging
  • computed tomography
  • dual energy
  • mass spectrometry
  • electron microscopy