Porphyrin architectures constructed by CH...π interactions: Synthesis and crystal structures of 5,10,15,20-tetrakis(4-methylchalcogenophenyl)-21H,23H-porphyrins

Article abstract of DOI:10.1246/cl.1997.927

Tetraphenylporphyrins substituted with methylchalcogeno groups (XMe: X = Te, Se, S, and O) were prepared. Crystal structure analysis revealed that a novel type of molecular alignments was achieved by intermolecular CH...π interactions between XCH₃ and porphyrin π-systems.