Synthesis and characterization of rigid [2.2]paracyclophane–porphyrin conjugates as scaffolds for fixed-distance bimetallic complexes

This work presents a new approach to prepare mono- and disubstituted linear rigid bimetallic [2.2]paracyclophane-porphyrin conjugates via palladium-mediated Stille cross-coupling reaction. The metalated porphyrin moiety can be varied allowing convenient access to modular metal-metal fixed-distance Cu/Zn complexes.