Synthesis and electrochemical properties of some metallated and peripherally substituted porphyrin co-facial dimers

Abstract

The high dilution coupling of mesoporphyrin-II bis(acid chloride) with a diol derived from mesoporphyrin-II bis(methyl ester) yields two diastereoisomers of a co-facial porphyrin dimer. The use of zinc as a removable protecting group for the diol face gives access to a wide range of mixed metal and mixed valence co-facial porphyrin dimers.Introduction of ami and nitro peripheral substituents provides another method for altering independenty the properties of each of the prophyrin faces in a dimer.