Abstract
Oxidation and reduction of iron and ruthenium metalloporphyrin complexes with pyridine in 1,2-dichloroethane (1,2-DCE) have been investigated. Redox potential shifts are observed for the two compounds on complexation. Electron transfer reactions between these two complexes in the organic phase and the aqueous ferri-ferrocyanide couple have been studied at the 1,2-DCE/water interface, for which a quasi-reversible one-electron transfer was found, whereas reversible behaviour was observed at metallic electrodes. Possible explanations for this difference are discussed in terms of orientation and ligand effects.
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