A porphyrin-related macrocycle from carbazole and pyridine building blocks: synthesis and metal coordination

In this communication, we report the synthesis of a novel porphyrin-related macrocycle. The core modifications result in aromatic building blocks connected exclusively via aryl-aryl bonds. The concept of synthesis permits the formation of a cavity similar to that of a porphyrin combined with the ability to bind metal ions to provide neutral metal complexes.