| dc.contributor | Universidade Estadual Paulista (UNESP) | |
| dc.creator | Martin, Cibely S. | |
| dc.creator | Teixeira, Marcos F. S. | |
| dc.date | 2015-10-21T20:50:00Z | |
| dc.date | 2016-10-25T21:08:54Z | |
| dc.date | 2015-10-21T20:50:00Z | |
| dc.date | 2016-10-25T21:08:54Z | |
| dc.date | 2015-01-30 | |
| dc.date.accessioned | 2017-04-06T09:08:50Z | |
| dc.date.available | 2017-04-06T09:08:50Z | |
| dc.identifier | Inorganica Chimica Acta, v. 425, p. 76-82, 2015. | |
| dc.identifier | 0020-1693 | |
| dc.identifier | http://hdl.handle.net/11449/129319 | |
| dc.identifier | http://acervodigital.unesp.br/handle/11449/129319 | |
| dc.identifier | http://dx.doi.org/10.1016/j.ica.2014.10.009 | |
| dc.identifier | WOS:000345755700011 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/939874 | |
| dc.description | Many high-valence multinuclear mu-oxo-bridged manganese complexes have been synthesized to mimic the active site of the natural enzymes. The electrochemical and kinetic parameters were determined for two mimicking complexes ([(Mn2O2)-O-IV(terpy)(2)(H2O)(2)](4+) and [(Mn4O5)-O-IV(terpy)(4)(H2O)(2)](6+)) by cyclic voltammetry and linear sweep voltammetry using a rotating disk electrode (RDE). Stability and kinetic behavior are directly related to mu-oxo bridges, where the mu-oxo-bridge provides a fast electron transition between metal centers due to stabilization of dx(2) - y(2) orbitals by the oxygen bond. On the other hand, when the dx(2) - y(2) orbitals are stabilized by aqua ligands by a coordination bond, a displacement of oxidation potential to more positive potential was observed. A shift of the potential to more negative values with increase in rotation rate was observed, which can be ascribed to a chemical step. The chemical step involves the dimerization process of the binuclear oxo-manganese complex to tetranuclear oxo-manganeses complex. (C) 2014 Elsevier B.V. All rights reserved. | |
| dc.description | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | |
| dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
| dc.language | eng | |
| dc.publisher | Elsevier B.V. | |
| dc.relation | Inorganica Chimica Acta | |
| dc.rights | info:eu-repo/semantics/closedAccess | |
| dc.subject | Biomimetic | |
| dc.subject | Oxo-manganese complexes | |
| dc.subject | Rotating disk electrode | |
| dc.subject | Change transfer mechanism | |
| dc.subject | Tafel behavior | |
| dc.title | A comparison of charge-transfer mechanisms at rotated disk electrode for biomimetic binuclear and tetranuclear oxo-manganese complex in aqueous solution | |
| dc.type | Otro | |
