Back Cover: Molecular Heterostructures of Covalent Triazine Frameworks for Enhanced Photocatalytic Hydrogen Production (Angew. Chem. Int. Ed. 26/2019)

Molecular heterostructures can facilitate charge carrier separation and promote photocatalytic activity. In their Communication on page 8676 ff., Y. G. Li et al. report a sequential polymerization strategy to prepare heterostructured covalent triazine frameworks containing spatially separated benzothiadiazole and thiophene moieties. The resultant product exhibits remarkable photocatalytic activity in H2 production that is far superior to those of most other conjugated polymer photocatalysts.