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Schematic diagram of the formation of covalently and non‐covalently linked ZnII‐porphyrin@SWNTs hybrids 2 and 6. Element colour: oxygen–red, sulfur–yellow, nitrogen–purple, light blue–zinc, grey–carbon. The structure of the disulfide‐linked side‐product was obtained by single‐crystal X‐ray diffraction; a ball and stick representation is used for clarity.
