Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/23604
Type: Artigo de periódico
Title: Preparação e caracterização do complexo cobaloxima e sua utilização na construção de um eletrodo modificado: um experimento eletroquímico no curso de graduação
Title Alternative: Preparation and characterization of the cobaloxime complex and its use in fabrication of a modified electrode: an electrochemical experiment for undergraduate course
Author: Borgo, Claudemir A.
Lazarin, Angélica M.
Davanzo, Celso U.
Gushikem, Yoshitaka
Abstract: The present experiment describes the preparation, characterization of n-butyl(pyridil)cobaloxime complex and its electrochemical property. The infrared and uv-visible absorption spectra were used to characterize the complex obtained. The infrared spectrum of the compound showed characteristics bands that indicated the formation of the Co-C chemical bond formation. The electronic absorption spectrum in acetonitrile showed transition bands attributed to p-p*, metal-to-ligand charge transfer, d-d transitions and charge transfer Co-C. The electrochemical property was investigated by the pulse differential voltammetry technique. Two oxidation processes: Co(I)/Co(II) at -423 mV and Co(II)/Co(III) at 752 mV were observed.
Subject: n-butyl(pyridil)cobaloxime
cobalt ion
pulse differential voltammetry
Editor: Sociedade Brasileira de Química
Rights: aberto
Identifier DOI: 10.1590/S0100-40422003000600028
Address: http://dx.doi.org/10.1590/S0100-40422003000600028
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422003000600028
Date Issue: 1-Dec-2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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