Chemistry Letters, Vol.37, No.7, 768-769, 2008
Bis(1-methylimidazole) complex of iron(III) oxypyriporphyrin adopting an intermediate-spin state
Bis(1-methylimidazole) complex of iron(III) oxypyriporphyrin adopts an essentially pure intermediate-spin (S = 3/2) state at 298 K, which is the first example of the iron(III) porphyrinoid adopting the S = 3/2 in spite of the bis-coordination of imidazole ligand.