Synthesis and characterization of novel chiral diporphyrins and their dimetal complexes

Reaction of chiral 2,2′-biamino-1, 1′-binaphthalene (R or S) with monosubstituted porphyrin 1b and 2b—c afforded novel chiral diporphyrins 3a—c and 4a–c. Their dimetal complexes [(M)2DiPor] have also been prepared. Both structures have been identified by MS, IR, UV-visible, 1H NMR spectra and elemental analysis. These novel chiral compounds show very high optical activities.