In this issue, K. F. Jensen et al. review autonomous discovery in the chemical sciences. How are discoveries of physical matter, processes, and models unified as search problems? W.-J. Ong et al. discuss Z-scheme photocatalytic systems for carbon dioxide reduction. The Minireviews deal with excitonic effects in polymeric photocatalysts (Y. Xie et al.) and metal-based multihelicenic architectures (J. Crassous et al.).

In the original research section, R. Linser et al. found the active site of a prototypical rigid drug target to be marked by extensive conformational dynamics. T. Yan and D. Guironnet present amphiphilic triblock copolymers that contain polypropylene as the middle block. J. Roithová et al. present a closed-shell iron(IV) oxo complex with an Fe–O triple bond (see picture), and J. Okuda et al. synthesized molecular zinc hydride cations that catalyze CO₂ hydrosilylation.

• Angewandte Chemie 51/2020: Extensive Dynamics,
  Angew. Chem. Int. Ed. 2020, 59 (51).