Figure 2.
Formal diagram of the porphyrinato core of a) [Fe(OEP)(NO3)] and b) [Fe(TPP)(NO3)] displaying perpendicular displacement (in units of 0.01 Å) of the core atoms from the 24-atom mean porphyrin plane. Positive displacements are towards the nitrate coordinated face of the porphyrin. The projections of the nitrate ligand upon the porphyrin plane are also shown. For [Fe(TPP)(NO3)], the two orientations of the nitrate ligand are shown. (O1A and O2A represent the oxygen atom positions of the major orientation.).