Metal-Nitroxyl Interactions. 46. EPR Spectra of Low-Spin Iron(III) Complexes of Spin-Labeled Tetraphenylporphyrins and Their Implications for the Interpretation of EPR Spectra of Spin-Labeled Cytochrome P450

Article abstract of DOI:10.1021/ja00264a010

Low-spin iron(III) complexes of seven spin-labeled tetraphenylporphyrins have been prepared.The spin labels were attached by amide or amide ether linkages (three-eight bonds) to the ortho position of one phenyl ring.The axial ligands were imidazole and 1-