Construction of a Multiple Porphyrin System Using a de novo Designed Peptide Porphyrin and Hemin

Multiple porphyrin systems were constructed using a Zn(II) porphyrin, A, which is a de novo designed peptide porphyrin, and Fe(III) protoporphyrin IX chloride, B. A forms a dimer in buffer solution containing 2,2,2-trifluoroethanol. However, A forms a trimer by incorporating three equivalents of B per A. The results suggest that the A/B solution achieves a 12-porphyrin system consisting of different kinds of metalloporphyrins.