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. 2022 Jan 11;13:248. doi: 10.1038/s41467-021-27831-2

Fig. 1. Molecular structure of R- or S-chiral porphyrin ligands.

Fig. 1

Inserted into the ligand is either a divalent zinc (S-Zn) or trivalent manganese (S- or R-Mn) ion. To balance the surplus charge on the Mn3+-ion the ligand has a chloride counterion bound to one side of the monomer.