1H-Nuclear Magnetic Resonance Studies on Cobalt(II) Complexes of N-Alkyl-octaethylporphyrins

High-spin cobalt(II) complexes of N-alkyl-octaethylporphyrin have been characterized by 1H-NMR measurements. Proton signals of N-alkyl groups and aromatic meso-protons were assigned by deuteration method. Axially coordinated imidazole resonance appeared at very low magnetic field.