Controlled assembly of photosensitizers through directional interactions for effective photooxidation
CHEMICAL COMMUNICATIONS(2023)
摘要
Despite the fact that effective photosensitizers (PSs) can be achieved through rational molecular design, controlling the hierarchical assemblies of individual PSs with distinct function and morphological nanoscopic architectures remains a challenge. Here, very ordered one-dimensional PS polymers and their hollow tubular structures are presented from aqueous assembly of organic PS-based di- or tri-blocked supramolecules. Di-blocked PSs were interdigitated into 1D fibrils, significantly quenching photooxidation. Meanwhile, tri-blocked PSs were tilted with respect to each other to generate hollow tubules, showing remarkable photo-activities as well as photo-stability, which are particularly suited for green chemistry due to their unusual rapid photo-oxidation. We report a rational strategy for the generation of a reactive 1O2 system based on the control of hierarchical assemblies of PS-based amphiphiles with fundamental function and morphologically different architectures.
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关键词
effective photooxidation,photosensitizers
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