Synthesis and characterization of a new series of metalloporphyrin polymers

A series of bridged metalloporphyrin polymers, [M(TPP)L](n), with pyrazine and bipyridine as the bridging ligands, L, tetraphenylporphyrin (TPP) as th e macrocycle (Mac) and Fe(III), Co(II), Mn(Ill), Ni(II) and Cu(II) as the c entral metal ions M, were synthesized by a high pressure method different f rom traditional refluxing methods for the synthesis of one-dimensional meta llomacrocycle polymers. These compounds were characterized by elemental ana lyses, surface photovoltage spectra and infrared spectra. The polymerizatio n time of the polymers varied, depending on the metal ions considerably, in the order Co(II) < Fe(III) < Ni(II) < Cu(II) < Mn(III), and the ligands, b ipyridine < pyrazine.