Synthesis and Charactarization of "Tailed Picket Fence" Porphyrins

Article abstract of DOI:10.1021/ja00532a033

The synthesis of "picket fence" porphyrin derivatives bearing covalently attached axial bases is described.The porphyrins have been well characterized, primarily as the iron(II) complexes, meso-tri(α,α,α-o-pivalamidophenyl)-β-o-5-(N-imidazolyl)valeramidophenylporphinatoiron(II) and meso-tri(α,α,α-o-pivalamidophenyl)-β-o-4-(N-imidazolyl)butyramidophenylporphyrinatoiron(II), by UV/visible, MCD, 1H NMR, and Moessbauer spectroscopy, magnetic susceptibility, and elemental analysis.Preliminary results of carbon monoxide binding studies are reported.