Electrochemical properties of Cu4[PhN3C6H4N3(H)Ph]4(µ-O)2, a tetranuclear Copper(II) complex with 1-phenyltriazenido-2-phenyltriazene-benzene as ligand
Bis-(µ2-oxo)-tetrakis{[1-feniltriazene-1,3-diil)-2-(phenyltriazenil)benzene copper(II) is a tetranuclear complex which shows four Cu(II) ions coordinated by four 1,2-bis(phenyltriazene)benzene bridged ligands, with one diazoaminic deprotonated chain, and two O2- ligands. The complex reduces at E1/2 = -0.95 V vs Fc+/Fc, a two electrons process. Cyclic voltammetric and spectroelectrochemical studies showed a reversible process. When immobilized on carbon paste electrode, the complex electrocatalyses the reduction of O2 dissolved on aqueous solution at -0.3 V vs SCE potential. The obtained current shows linearity with O2 concentration.
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Main Authors: | Hermann,A., Silva,L. S., Peixoto,C. R. M., Oliveira,A. B. de, Bordinhão,J., Hörner,M. |
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Format: | Digital revista |
Language: | English |
Published: |
Fundação Editora da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP
2008
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Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702008000300006 |
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