2191-2197Synthesis, characterization,
spectroscopic and electrochemical studies on meso tetraferrocenyl
porphyrin are reported. Substitution of ferrocenyl groups on the meso carbons
affect the electronic structure of the porphyryn as well as the ferrocenyl moiety.
This is reflected in the shift of electronic absorption band and redox
potentials in the ferrocenyl
containing porphyrin relative to the porphyrins
without ferrocenyl group. Single crystal X-ray structure of freebase reveals an
α,β,α,β orientation
of the ferrocenyl groups relative to the mean plane of the porphyrin ring.
Introduction of metal into the porphyrin ring does not alter the electronic
structure of the metal as revealed by EPR spectrum for Cu2+
derivative