Fig. 1 Crystal structures of (a) palladium(II) m-benziporphyrin 70-Pd and (b) chloronickel(II) mbenziporphyrin 5-NiCl (side views with aryl groups omitted for clarity). Adapted from Refs.
[16, 57], respectively
Fig. 2 Crystal structures of (a) zinc(II) 3-aza-m-benziporphyrin 7-Zn and (b) iron(III) 22-aza-mbenziporphyrin 6-Fe (both side views with aryl groups omitted for clarity). Adapted from Refs.
[22, 89], respectively
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K. Hurej and L. Latos-Grażyński