Electropolymerization mechanism in aqueous solution of the oxo-manganese complex biomimicking of the enzymatic center present on the photosystem II
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The [Mn4 IVO5(terpy)4(H 2O)2]6+ complex, show great potential for electrode modification by electropolymerization using cyclic voltammetry. The electropolymerization mechanism was based on the electronic transfer between dx2-y2 orbitals of the center metallic and pπ orbital of the ligand, which show great complexity of the system due to orbitals overlap present in octahedral complex of the metal-μ-oxo. The voltammetric behavior both in and after electropolymerization process were also discussed, where the best condition of electropolymerization was observed for low scan rate and 50 potential cycles. A study in ITO/glass electrode for better characterization of polymer was also performed. ©The Electrochemical Society.
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Bio-mimicking, Electrode modification, Electronic transfers, Octahedral complex, Photosystem II, Potential cycles, Scan rates, Voltammetric behaviors, Cyclic voltammetry, Manganese, Electropolymerization
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Inglês
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ECS Transactions, v. 43, n. 1, p. 159-165, 2012.
