In this issue, D. Mukherjee and J. Okuda review molecular magnesium hydrides. How can they be designed to serve as hydrogen-storage materials? L. Jierry et al. discuss surface-assisted self-assembly strategies for supramolecular hydrogels in a Minireview.

In the Communications section, Y. Takahashi et al. visualize the heterogeneous oxygen storage behavior in platinum-supported cerium–zirconium oxide catalyst particles (see picture). G. Alcaraz et al. present a solventless and metal-free synthesis of high-molecular-mass polyaminoboranes. O. Daugulis et al. succeeded in cobalt-catalyzed couplings of benzoic acid C–H bonds with alkynes, styrenes, and 1,3-dienes.

• Angewandte Chemie 6/2018: Design to Serve,
  Angew. Chem. Int. Ed. 2018, 57 (6).