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Supramolecular photocatalysis unites light-driven reactivity with noncovalent molecular design to exert precise control over photochemical transformations. Through host–guest recognition, π-stacking, hydrogen bonding, and charge-transfer assemblies, these systems organize chromophores and substrates with molecular precision, enhancing energy transfer, reactivity, and selectivity, often emulating natural photosystems. Recent advances, including visible-light-induced photoredox and PET processes, have showcased the power of supramolecular platforms for sustainable synthesis and artificial photosynthesis.1 Notably, 9-mesityl-10-methylacridinium perchlorate has enabled diverse C–C and C–heteroatom couplings under mild conditions, with significant contributions from Mal and co-workers.2 Parallel developments in heterogeneous and semi-heterogeneous photocatalysis have identified CsPbBr33 perovskites and CeCl34 as versatile catalysts for key bond-forming reactions. This feature article surveys these innovations and presents a forward-looking vision for supramolecular photocatalysis as a transformative paradigm in light-enabled chemistry. |