Outside Front Cover: Dibenzazepine Bridged Network Polymeric Phthalocyanines as Degradable Heterogeneous Photocatalysts

In the Research Article (e23011), Erem Ahmetali, Stefan Bräse, and co-workers harness wavelength-selective photochemistry for “design-use-degradation” of network polymeric phthalocyanines. Irradiation at 368 nm triggers a [2+2] cycloaddition, generating a dibenzazepine dimer that functions as an organic bridge within the networks. 647 nm enables highly efficient sulfide oxidation alongside PET-RAFT polymerization. Remarkably, 254 nm induces controlled disassembly of the network polymeric phthalocyanines.