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Volume 2 Issue 9, September 2023

Conjugated aromatic systems

This Focus issue overviews the synthesis and computational study of various conjugated aromatic molecules and polymers as well as their electronic and chemical properties. The incorporation of these molecules and materials in devices or in catalysis is discussed.

The cover image depicts the synthesis of polyacene inside the channels of a metal−organic framework.

See Kitao et al.

Image: Takashi Kitao, Takumi Miura and Takashi Uemura, The University of Tokyo. Cover Design: Amie Fernandez.


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Comment & Opinion

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Research Highlights

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News & Views

  • Aromatic molecules with multiple one-half twists are synthesized using different precursors and synthetic routes. The pseudo-helicoidal structural chirality of these molecules and the loop of the twisted π-electronic structure fully overlap, thus giving rise to enhanced chiroptical responses.

    • Qian Miao
    • Juan Casado
    News & Views
  • Stereocontrolled radical polymerizations are elusive, owing to the difficulty of controlling facial addition at a propagating planar, sp2 radical chain end. Now, cobalt–porphyrin initiators are reported that enable the preparation of well-defined, highly isotactic polyacrylamides at low Lewis acid loading.

    • Kasun Wekasinghe
    • Aaron J. Teator
    News & Views
  • The synthesis of polyacene is hampered by low solubility and instability of the product as well as side reactions. Now, polyacene is synthesized by polymerizing monomers confined in a metal–organic framework.

    • Bernhard V. K. J. Schmidt
    News & Views
  • A hydrogen-bonded organic framework reversibly forms crystalline and amorphous phases in solid and liquid states, enabling solution processability for the polymer-based framework.

    • Subhajit Dutta
    • Soumya Mukherjee
    News & Views
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  • The electrocatalytic oxygen evolution reaction (OER) balances the hydrogen evolution reaction when splitting water into hydrogen and oxygen. This review highlights the need for new theory, electrochemistry and operando spectroscopy to enable knowledge-driven synthesis of new OER electrocatalysts.

    • Sebastian Z. Oener
    • Arno Bergmann
    • Beatriz Roldan Cuenya
    Review Article
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