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Metal-organic frameworks (MOFs) have emerged as promising single-site solid catalysts for organic reactions. However, MOF catalysts suffer from pore size limitation and slow diffusion, which are detrimental for photoreactions. Metal-organic layers (MOLs) have unique ultrathin 2D monolayer structures and overcome pore size and diffusion limitations. Here, the synthesis of photoactive Zr-RuBPY MOL based on Zr-oxo clusters and Ru(bpy)3 2+ -containing linkers is reported as well as its application in photocatalytic 2+2 cyclizations of enones and Meerwein addition reactions between aryl diazonium salts, styrenes, and nitriles.
Xu et al. (Tue,) studied this question.