Preparation, characterization and electrochemical studies of dinuclear copper(II) complexes with pseudohalides and bidentate amines on platinum electrode in acetonitrile
Autor(a) principal: | |
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Data de Publicação: | 1997 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000300016 |
Resumo: | The complexes: [Cu(N3)2(N,N-diEten)]2, [Cu(N3)2(tmeen)]2, [Cu(N3)(NCO)(N,N-diEten)]2, [Cu(N3)2(N,N-diMeen)]2 and [Cu(N3)(NCO)(tmeen)]2 were prepared, characterized and their electrochemical behavior was investigated by cyclic voltammetry and controlled potential electrolysis. Cyclic voltammograms for all complexes studied are similar and exhibit one pair of current peaks in the range of -0.65 to +0.0 V. The number of electrons obtained from controlled potential electrolysis at ca. -0.55 V for all compounds was 1.8 £ n £ 2.1, indicating that both copper(II) metallic centres in the molecule were reduced to copper (I). Comparing the peak potential values for these complexes one can observe that the redox process corresponding to copper(II)/copper(I) couple is slightly influenced by the s-basicity of the ligands. |
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Preparation, characterization and electrochemical studies of dinuclear copper(II) complexes with pseudohalides and bidentate amines on platinum electrode in acetonitrilecopper complexesNN-dialkyldiamine ligandspseudohalyde ligandscyclic voltammetry of copper complexesThe complexes: [Cu(N3)2(N,N-diEten)]2, [Cu(N3)2(tmeen)]2, [Cu(N3)(NCO)(N,N-diEten)]2, [Cu(N3)2(N,N-diMeen)]2 and [Cu(N3)(NCO)(tmeen)]2 were prepared, characterized and their electrochemical behavior was investigated by cyclic voltammetry and controlled potential electrolysis. Cyclic voltammograms for all complexes studied are similar and exhibit one pair of current peaks in the range of -0.65 to +0.0 V. The number of electrons obtained from controlled potential electrolysis at ca. -0.55 V for all compounds was 1.8 £ n £ 2.1, indicating that both copper(II) metallic centres in the molecule were reduced to copper (I). Comparing the peak potential values for these complexes one can observe that the redox process corresponding to copper(II)/copper(I) couple is slightly influenced by the s-basicity of the ligands.Sociedade Brasileira de Química1997-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000300016Journal of the Brazilian Chemical Society v.8 n.3 1997reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50531997000300016info:eu-repo/semantics/openAccessSargentelli,VBenedetti,A.VMauro,A.Eeng2011-01-31T00:00:00Zoai:scielo:S0103-50531997000300016Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2011-01-31T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Preparation, characterization and electrochemical studies of dinuclear copper(II) complexes with pseudohalides and bidentate amines on platinum electrode in acetonitrile |
title |
Preparation, characterization and electrochemical studies of dinuclear copper(II) complexes with pseudohalides and bidentate amines on platinum electrode in acetonitrile |
spellingShingle |
Preparation, characterization and electrochemical studies of dinuclear copper(II) complexes with pseudohalides and bidentate amines on platinum electrode in acetonitrile Sargentelli,V copper complexes N N-dialkyldiamine ligands pseudohalyde ligands cyclic voltammetry of copper complexes |
title_short |
Preparation, characterization and electrochemical studies of dinuclear copper(II) complexes with pseudohalides and bidentate amines on platinum electrode in acetonitrile |
title_full |
Preparation, characterization and electrochemical studies of dinuclear copper(II) complexes with pseudohalides and bidentate amines on platinum electrode in acetonitrile |
title_fullStr |
Preparation, characterization and electrochemical studies of dinuclear copper(II) complexes with pseudohalides and bidentate amines on platinum electrode in acetonitrile |
title_full_unstemmed |
Preparation, characterization and electrochemical studies of dinuclear copper(II) complexes with pseudohalides and bidentate amines on platinum electrode in acetonitrile |
title_sort |
Preparation, characterization and electrochemical studies of dinuclear copper(II) complexes with pseudohalides and bidentate amines on platinum electrode in acetonitrile |
author |
Sargentelli,V |
author_facet |
Sargentelli,V Benedetti,A.V Mauro,A.E |
author_role |
author |
author2 |
Benedetti,A.V Mauro,A.E |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Sargentelli,V Benedetti,A.V Mauro,A.E |
dc.subject.por.fl_str_mv |
copper complexes N N-dialkyldiamine ligands pseudohalyde ligands cyclic voltammetry of copper complexes |
topic |
copper complexes N N-dialkyldiamine ligands pseudohalyde ligands cyclic voltammetry of copper complexes |
description |
The complexes: [Cu(N3)2(N,N-diEten)]2, [Cu(N3)2(tmeen)]2, [Cu(N3)(NCO)(N,N-diEten)]2, [Cu(N3)2(N,N-diMeen)]2 and [Cu(N3)(NCO)(tmeen)]2 were prepared, characterized and their electrochemical behavior was investigated by cyclic voltammetry and controlled potential electrolysis. Cyclic voltammograms for all complexes studied are similar and exhibit one pair of current peaks in the range of -0.65 to +0.0 V. The number of electrons obtained from controlled potential electrolysis at ca. -0.55 V for all compounds was 1.8 £ n £ 2.1, indicating that both copper(II) metallic centres in the molecule were reduced to copper (I). Comparing the peak potential values for these complexes one can observe that the redox process corresponding to copper(II)/copper(I) couple is slightly influenced by the s-basicity of the ligands. |
publishDate |
1997 |
dc.date.none.fl_str_mv |
1997-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000300016 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000300016 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50531997000300016 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Journal of the Brazilian Chemical Society v.8 n.3 1997 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318163035160576 |