Electron Transfer Reactivity on Novel Dirhenium and Dirhodium Tetraazaannulene Complexes

摘要

The electron transfer reactivities of dirhenium and dirhodium carbonyl complexes of the macrocyclic ligans, 5,7,12,14-tetramethyldibenzo (b,i)(1,4,8,11) tetraaz (14) annulene, (TMTAA), dibezo (b, i) (1,4,8,11) tetraaza (14) annulene, (TAA), and tetraphenylporphyrin, (TPP) were investigated by cyclic voltammetry and differential pulse polarography. Potentials are reported for the electrochemcial generation of pi cation and pi anion radicals of these complexes in the solvents dichloromethane and dimethylformamide. The potential differences between the pi radical reactions of the metallomacrocyclic complexes were compared to the potential differences of the pi radical reactions of the free macrocycles. (Author)