Abstract
A series of cationic porphyrins having only different steric effects and their cobalt complexes were synthesized. The cations of these porphyrins are meso-tetrakis(4-N-propylpyridyl)porphyrin (TPPyP4+), meso-tetrakis(4-N-ethylpyridyl)porphyrin (TEPyP4+) and meso-tetrakis(4-N-methylpyridyl)porphyrin (TMPyP4+), respectively. The anions are I− (water soluble porphyrins) and ClO4 − (organic solvent soluble porphyrins), respectively. The synthetic cationic porphyrins were characterized by elemental analysis, UV-visible absorption spectra, FTIR, MALDI-TOF-MS and 1H-NMR spectra.
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