In this issue, Bert M. Weckhuysen et al. review carbon deposit analysis in catalyst deactivation, regeneration, and rejuvenation. Natalia B. Shustova et al. discuss stimuli-responsive molecular and extended catalytic systems. The Minireviews deal with photocatalysis for upcycling polymers into value-added molecules (Fabian Eisenreich) and sulfonium salts as acceptors in electron donor–acceptor complexes (David J. Procter et al.). Renana Gershoni-Poranne and Alexandra Tsybizova highlight the solution-phase synthesis of circumcoronenes.

In the original research section, Gebhard Haberhauer et al. present a chalcogen-bond-induced double helix based on self-assembly. Alexandra Zevalkink et al. investigated the role of vacancies on the thermoelectric properties of EuCuSb–Eu₂ZnSb₂ alloys. Yan Zhao et al. report an aqueous electrolyte gated artificial synapse with synaptic plasticity selectively mediated by biomolecules. Tamaki Nakano et al. succeeded in amplified chirality transfer to aromatic molecules through non-specific inclusion by amorphous, hyperbranched poly(fluorenevinylene) derivatives (see picture).

• Angewandte Chemie 29/2023: Crowning Achievement,
  Angew. Chem. Int. Ed. 2023, 62 (29).

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