In this issue, J. A. Johnson et al. review polymer networks as useful materials for plastics, gels, and porous frameworks. D. Jiang et al. discuss chemical approaches to structures and functions of covalent organic frameworks in a further Review. The Minireview by N. S. L. Tan and A. B. Lowe deals with polymerization with well-defined rhodium complexes, and G. Greczynski and L. Hultman share a Viewpoint on improper calibration in X-ray photoelectron spectroscopy. Q. Shi and J. Ye highlight deracemization by visible-light photocatalysis.

In the original research section, C. Zhong et al. show how tunable ordered mesoporosity in palladium membranes enables enhancement of intrinsic electrocatalysis for formic acid oxidation (see picture). R. S. Forgan et al. succeeded in the multivariate modulation of a zirconium MOF for defect-controlled combination anticancer drug delivery. D. Trauner et al. present a bioinspired synthesis of the tetramic acid (−)-PF-1018. E. J. Palomares et al. minimized carrier losses in perovskite solar cells through structural modification of triphenylamine derivatives.

• Angewandte Chemie 13/2020: There’s a Great Future in Plastics,
  Angew. Chem. Int. Ed. 2020, 59 (13).