Electrochemical properties of Cu4[PhN3C6H4N3(H)Ph]4(μ-O)2, a tetranuclear Copper(II) complex with 1-phenyltriazenido-2-phenyltriazene-benzene as ligand
Vol. 33 No. 3 (2008), Original articles
Vol. 33 No. 3 (2008)

Electrochemical properties of Cu4[PhN3C6H4N3(H)Ph]4(μ-O)2, a tetranuclear Copper(II) complex with 1-phenyltriazenido-2-phenyltriazene-benzene as ligand

Original articles
https://doi.org/10.26850/1678-4618eqj.v33.3.2008.p43-46
Published 2008-09-29
Alessandro Hermann
Universidade Regional do Noroeste do Estado do Rio Grande do Sul, Departamento de Biologia e Química, Ijuí, Brasil.
Lucinei Stechmann da Silva
Universidade Regional do Noroeste do Estado do Rio Grande do Sul, Departamento de Biologia e Química, Ijuí, Brasil.
Carlos Roberto de Menezes Peixoto
Universidade Regional do Noroeste do Estado do Rio Grande do Sul, Departamento de Biologia e Química, Ijuí, Brasil.
Adriano Bof de Oliveira
Universidade Federal de Santa Maria, Departamento de Química, Santa Maria, Brasil.
Jairo Bordinhão
Universidade Federal do Rio de Janeiro, Instituto de Química, Rio de Janeiro, Brasil.
Manfredo Hörner
Universidade Federal de Santa Maria, Departamento de Química, Santa Maria, Brasil.
https://orcid.org/0000-0002-1683-1998
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Keywords

copper(II) complex
1,2-bis(phenyltriazene)benzene ligand
spectroelectrochemical characterization
electrochemical sensor
oxygen reduction

How to Cite

Hermann, A., da Silva, L. S., Peixoto, C. R. de M., de Oliveira, A. B., Bordinhão, J., & Hörner, M. (2008). Electrochemical properties of Cu4[PhN3C6H4N3(H)Ph]4(μ-O)2, a tetranuclear Copper(II) complex with 1-phenyltriazenido-2-phenyltriazene-benzene as ligand. Eclética Química, 33(3), 43–46. https://doi.org/10.26850/1678-4618eqj.v33.3.2008.p43-46
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Abstract

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.

https://doi.org/10.26850/1678-4618eqj.v33.3.2008.p43-46
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