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


Autoria(s): Hermann,A.; Silva,L. S.; Peixoto,C. R. M.; Oliveira,A. B. de; Bordinhão,J.; Hörner,M.
Data(s)

01/01/2008

Resumo

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.

Formato

text/html

Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702008000300006

Idioma(s)

en

Publicador

Fundação Editora da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP

Fonte

Eclética Química v.33 n.3 2008

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

journal article