Electrochemical Studies of Macrocyclic Complexes as Synthetic Porphyrin Analogs.

摘要

Knowledge of biological and catalytic systems develops axiomatically with the associated state of knowledge of basic chemistry. The progress of the basic coordination chemistry of macrocyclic ligands has led to a better understanding of such biological systems as heme proteins, chlorophylls, and vitamin B12 and of catalysts such as fuel cells. The presence of highly conjugated ligands in these systems implies that these ligands lend unusuall properties to the coordinated metals. Macrocycles such as porphyrins and phthalocyanines have been well studied as evidenced by the huge amount of material published on these ligands. There is a growing interest in synthetic macrocycles because of their unique nature in coordinating metals as well as their electron transfer properties in transition metal complexes. The aim of the electrochemical studies was to acquire an understanding of structure-reactivity relationships in synthetic systems and to apply this information to the electron transfer reactivity of naturally occurring macrocycles particularly metalloporphyrins.