Electropolymerization mechanism in aqueous solution of the oxo-manganese complex biomimicking of the enzymatic center present on the photosystem II

• Main Author: Martin, C. S. [UNESP]
• Publication Date: 2012
• Other Authors: Teixeira, M. F S [UNESP]
• Format: Conference object
• Language: eng
• Source: Repositório Institucional da UNESP
• Download full: http://dx.doi.org/10.1149/1.4704953; http://hdl.handle.net/11449/73846
• topic: Bio-mimicking; Electrode modification; Electronic transfers; Octahedral complex; Photosystem II; Potential cycles; Scan rates; Voltammetric behaviors; Cyclic voltammetry; Manganese; Electropolymerization

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.