Synthesis and properties of manganese complexes of <Emphasis Type="Italic">meso</Emphasis>-tetraphenyltetrabenzoporphyrin

The coordination of meso-tetraphenyltetrabenzoporphyrin and metal exchange of its Cd(II) complex with manganese(II) chloride and acetate in DMF and a chloroform–methanol mixture have been studied by spectrophotometry. The Mn(III) chloride and acetate acido complexes formed in these reactions have been isolated and characterized. The dissolution of the synthesized complexes in DMF in the presence of solid KOH gives Mn(II) meso-tetraphenyltetrabenzoporphyrinate.