Electrochemical and spectroscopic studies of tungstencarbonyl complexes containing nitrogen and phosphorous ligands
Autor(a) principal: | |
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Data de Publicação: | 2000 |
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=S0103-50532000000400016 |
Resumo: | The present work deals with the synthesis, spectroscopic investigation and electrochemical behaviour of the compounds [W(CO)4(bipy)] (1), [W(CO)3(bipy)(dppm)] (2) and [W(CO)3(bipy)(dppf)] (3), bipy = 2,2'-bipyridine; dppm = bis(diphenylphosphino)methane; dppf = 1,1'-bis(diphenylphosphino)ferrocene. The IR and 31P{¹H} NMR spectroscopic data have shown an octahedral coordination geometry for the tungsten atom with the diphosphines acting as monodentate ligands. The electrochemical behaviour of the complexes was investigated by cyclic voltammetry and controlled potential coulometry. Cyclic voltammograms have indicated that the compounds containing diphosphines ligands are more stable towards oxidation than compound (1). |
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Electrochemical and spectroscopic studies of tungstencarbonyl complexes containing nitrogen and phosphorous ligandstungstencarbonyl complexesdiphosphinescyclic voltammetryinfrared spectroscopyThe present work deals with the synthesis, spectroscopic investigation and electrochemical behaviour of the compounds [W(CO)4(bipy)] (1), [W(CO)3(bipy)(dppm)] (2) and [W(CO)3(bipy)(dppf)] (3), bipy = 2,2'-bipyridine; dppm = bis(diphenylphosphino)methane; dppf = 1,1'-bis(diphenylphosphino)ferrocene. The IR and 31P{¹H} NMR spectroscopic data have shown an octahedral coordination geometry for the tungsten atom with the diphosphines acting as monodentate ligands. The electrochemical behaviour of the complexes was investigated by cyclic voltammetry and controlled potential coulometry. Cyclic voltammograms have indicated that the compounds containing diphosphines ligands are more stable towards oxidation than compound (1).Sociedade Brasileira de Química2000-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000400016Journal of the Brazilian Chemical Society v.11 n.4 2000reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532000000400016info:eu-repo/semantics/openAccessHaddad,Paula S.Miranda,GislaineAnanias,Sandra R.Mauro,Antonio E.Nogueira,Vânia M.eng2000-11-17T00:00:00Zoai:scielo:S0103-50532000000400016Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2000-11-17T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Electrochemical and spectroscopic studies of tungstencarbonyl complexes containing nitrogen and phosphorous ligands |
title |
Electrochemical and spectroscopic studies of tungstencarbonyl complexes containing nitrogen and phosphorous ligands |
spellingShingle |
Electrochemical and spectroscopic studies of tungstencarbonyl complexes containing nitrogen and phosphorous ligands Haddad,Paula S. tungstencarbonyl complexes diphosphines cyclic voltammetry infrared spectroscopy |
title_short |
Electrochemical and spectroscopic studies of tungstencarbonyl complexes containing nitrogen and phosphorous ligands |
title_full |
Electrochemical and spectroscopic studies of tungstencarbonyl complexes containing nitrogen and phosphorous ligands |
title_fullStr |
Electrochemical and spectroscopic studies of tungstencarbonyl complexes containing nitrogen and phosphorous ligands |
title_full_unstemmed |
Electrochemical and spectroscopic studies of tungstencarbonyl complexes containing nitrogen and phosphorous ligands |
title_sort |
Electrochemical and spectroscopic studies of tungstencarbonyl complexes containing nitrogen and phosphorous ligands |
author |
Haddad,Paula S. |
author_facet |
Haddad,Paula S. Miranda,Gislaine Ananias,Sandra R. Mauro,Antonio E. Nogueira,Vânia M. |
author_role |
author |
author2 |
Miranda,Gislaine Ananias,Sandra R. Mauro,Antonio E. Nogueira,Vânia M. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Haddad,Paula S. Miranda,Gislaine Ananias,Sandra R. Mauro,Antonio E. Nogueira,Vânia M. |
dc.subject.por.fl_str_mv |
tungstencarbonyl complexes diphosphines cyclic voltammetry infrared spectroscopy |
topic |
tungstencarbonyl complexes diphosphines cyclic voltammetry infrared spectroscopy |
description |
The present work deals with the synthesis, spectroscopic investigation and electrochemical behaviour of the compounds [W(CO)4(bipy)] (1), [W(CO)3(bipy)(dppm)] (2) and [W(CO)3(bipy)(dppf)] (3), bipy = 2,2'-bipyridine; dppm = bis(diphenylphosphino)methane; dppf = 1,1'-bis(diphenylphosphino)ferrocene. The IR and 31P{¹H} NMR spectroscopic data have shown an octahedral coordination geometry for the tungsten atom with the diphosphines acting as monodentate ligands. The electrochemical behaviour of the complexes was investigated by cyclic voltammetry and controlled potential coulometry. Cyclic voltammograms have indicated that the compounds containing diphosphines ligands are more stable towards oxidation than compound (1). |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-08-01 |
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=S0103-50532000000400016 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000400016 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532000000400016 |
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.11 n.4 2000 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_ |
1750318164159234048 |