Complexes consisting of an iron ion coordinated to a porphyrin acting as a tetradentate
ligand, and to one or two axial
ligands.
Source:
PAC, 1995, 67, 1307
(Glossary of class names of organic compounds and reactivity intermediates based on
structure (IUPAC Recommendations 1995))
on page 1339
See also:
White Book, p. 311White Book, p. 316