Fig. 1.
Structures of catalytic antioxidant porphyrins that contain cationic, pyridyl side groups: manganese(111)-tetrakis-(N-methylpyridinium-4-yl)porphyrin (MnTM-4-PyP5+) or manganese(111)-tetrakis-(N-ethylpyridinium-2-yl)porphyrin (MnTE-2-PyP5+).
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