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The longest acenes.

Holger F Bettinger1, Christina Tönshoff

  • 1Institut für Organische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany. holger.bettinger@uni-tuebingen.de.

Chemical Record (New York, N.Y.)
|November 22, 2014
PubMed
Summary

Researchers synthesized nonacene, a large polycyclic aromatic hydrocarbon. This overcomes the high reactivity that previously limited the study of larger acenes beyond hexacene.

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Area of Science:

  • Organic Chemistry
  • Materials Science

Background:

  • Hexacene (six linearly fused benzene rings) was historically the largest known acene.
  • Larger acenes, like heptacene, exhibit high reactivity, necessitating stabilization or specialized detection methods.

Purpose of the Study:

  • To review recent advancements in the synthesis of larger acenes.
  • To report the successful synthesis of substituted and parent nonacene.

Main Methods:

  • Literature review of recent synthetic strategies for acenes.
  • Analysis of techniques enabling the isolation and characterization of highly reactive polycyclic aromatic hydrocarbons.

Main Results:

  • The synthesis of nonacene (nine linearly fused benzene rings) has been achieved.
  • Methods for stabilizing or detecting reactive parent acenes have been advanced.

Conclusions:

  • The synthesis of nonacene represents a significant step in extending the acene series.
  • This research opens new avenues for exploring the properties and applications of larger acene molecules.
Keywords:
arenesaromaticitymatrix isolationphotochemistrypolycycles

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