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Visible And Infrared Spectroelectrochemistry Of Zinc And Manganese Porphinones: Metal Vs. Porphyrin Reduction, Florentina Tutunea, Abderrahman Atifi, Michael D. Ryan

Chemistry Faculty Research and Publications

The visible and infrared spectroelectrochemistry of zinc and manganese porphinones and porphinediones was carried out in THF solutions. The aim of this work was to use FTIR spectroelectrochemistry and DFT calculation to determine whether the reduction was centered predominantly on the metal or the macrocycle. For zinc(II), the first one-electron reduction must occur on the macrocyclic ring because the metal’s d-orbitals are filled (d¹⁰). The carbonyl bands on the macrocyclic ring were used to probe the electronic structure because they can be readily observed in the infrared spectra. The results of this study are complementary to previous spectroelectrochemical …