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meso‐Triazolyl‐appended ZnII–porphyrins were readily prepared by CuI‐catalyzed 1,3‐dipolar cycloaddition of benzyl azide to meso‐ethynylated ZnII–porphyrin (click chemistry). In noncoordinating CHCl3 solvent, spontaneous assembly occurred to form tetrameric array (3)2 from meso–meso‐linked diporphyrins 3, and dodecameric porphyrin squares (4)4 and (5)4 from the L‐shaped meso–meso‐linked triporphyrins...
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