Novel luminescent Eu3+-indandionate complexes containing heterobiaryl ligands
Autor(a) principal: | |
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Data de Publicação: | 2014 |
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=S0103-50532014001100020 |
Resumo: | Novel Ln3+-indandionate complexes of formulas [Ln(aind)3L(H2O)] and [Ln(bind)3L]∙H2O (L: 1,10-phenanthroline (phen) or 4,7-dimethyl-1,10-phenanthroline (dmphen), Ln3+: Eu3+ or Gd3+, aind: 2-acetyl-1,3-indandionate and bind: 2-benzoyl-1,3-indandionate) were synthesized and characterized by elemental analysis, infrared spectroscopy, and thermogravimetric analyses. The characterization data are consistent with the presence of a water lattice molecule in the [Ln(bind)3L]∙H2O compounds. However, the data also suggest that the water acts as a coordinated molecule in the [Ln(aind)3L(H2O)] ones. Theoretical geometries of the Eu3+-complexes have been optimized via the SPARKLE/AM1 Model for lanthanide complexes that are consistent with their luminescence experimental data. The photoluminescence properties of the Eu3+-compounds have been discussed in terms of experimental intensity parameters (Ω2 and Ω4), radiative (Arad), and non-radiative (Anrad) spontaneous emission coefficients. The higher values of emission quantum efficiency (η) of the [Eu(bind)3L]∙H2O compounds reflect the absence of luminescence-quenching water molecule in their first coordination spheres. |
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Novel luminescent Eu3+-indandionate complexes containing heterobiaryl ligandslanthanides2-acyl-1,3-indandionates4,7-dimethyl-1,10-phenanthrolineNovel Ln3+-indandionate complexes of formulas [Ln(aind)3L(H2O)] and [Ln(bind)3L]∙H2O (L: 1,10-phenanthroline (phen) or 4,7-dimethyl-1,10-phenanthroline (dmphen), Ln3+: Eu3+ or Gd3+, aind: 2-acetyl-1,3-indandionate and bind: 2-benzoyl-1,3-indandionate) were synthesized and characterized by elemental analysis, infrared spectroscopy, and thermogravimetric analyses. The characterization data are consistent with the presence of a water lattice molecule in the [Ln(bind)3L]∙H2O compounds. However, the data also suggest that the water acts as a coordinated molecule in the [Ln(aind)3L(H2O)] ones. Theoretical geometries of the Eu3+-complexes have been optimized via the SPARKLE/AM1 Model for lanthanide complexes that are consistent with their luminescence experimental data. The photoluminescence properties of the Eu3+-compounds have been discussed in terms of experimental intensity parameters (Ω2 and Ω4), radiative (Arad), and non-radiative (Anrad) spontaneous emission coefficients. The higher values of emission quantum efficiency (η) of the [Eu(bind)3L]∙H2O compounds reflect the absence of luminescence-quenching water molecule in their first coordination spheres.Sociedade Brasileira de Química2014-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014001100020Journal of the Brazilian Chemical Society v.25 n.11 2014reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20140197info:eu-repo/semantics/openAccessResende Filho,João B. M.Silva,Jannine C.Vale,Juliana A.Brito,Hermi F.Faustino,Wagner M.Espínola,José G. P.Felinto,Maria C. F. C.Teotonio,Ercules E. S.eng2014-11-13T00:00:00Zoai:scielo:S0103-50532014001100020Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2014-11-13T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Novel luminescent Eu3+-indandionate complexes containing heterobiaryl ligands |
title |
Novel luminescent Eu3+-indandionate complexes containing heterobiaryl ligands |
spellingShingle |
Novel luminescent Eu3+-indandionate complexes containing heterobiaryl ligands Resende Filho,João B. M. lanthanides 2-acyl-1,3-indandionates 4,7-dimethyl-1,10-phenanthroline |
title_short |
Novel luminescent Eu3+-indandionate complexes containing heterobiaryl ligands |
title_full |
Novel luminescent Eu3+-indandionate complexes containing heterobiaryl ligands |
title_fullStr |
Novel luminescent Eu3+-indandionate complexes containing heterobiaryl ligands |
title_full_unstemmed |
Novel luminescent Eu3+-indandionate complexes containing heterobiaryl ligands |
title_sort |
Novel luminescent Eu3+-indandionate complexes containing heterobiaryl ligands |
author |
Resende Filho,João B. M. |
author_facet |
Resende Filho,João B. M. Silva,Jannine C. Vale,Juliana A. Brito,Hermi F. Faustino,Wagner M. Espínola,José G. P. Felinto,Maria C. F. C. Teotonio,Ercules E. S. |
author_role |
author |
author2 |
Silva,Jannine C. Vale,Juliana A. Brito,Hermi F. Faustino,Wagner M. Espínola,José G. P. Felinto,Maria C. F. C. Teotonio,Ercules E. S. |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Resende Filho,João B. M. Silva,Jannine C. Vale,Juliana A. Brito,Hermi F. Faustino,Wagner M. Espínola,José G. P. Felinto,Maria C. F. C. Teotonio,Ercules E. S. |
dc.subject.por.fl_str_mv |
lanthanides 2-acyl-1,3-indandionates 4,7-dimethyl-1,10-phenanthroline |
topic |
lanthanides 2-acyl-1,3-indandionates 4,7-dimethyl-1,10-phenanthroline |
description |
Novel Ln3+-indandionate complexes of formulas [Ln(aind)3L(H2O)] and [Ln(bind)3L]∙H2O (L: 1,10-phenanthroline (phen) or 4,7-dimethyl-1,10-phenanthroline (dmphen), Ln3+: Eu3+ or Gd3+, aind: 2-acetyl-1,3-indandionate and bind: 2-benzoyl-1,3-indandionate) were synthesized and characterized by elemental analysis, infrared spectroscopy, and thermogravimetric analyses. The characterization data are consistent with the presence of a water lattice molecule in the [Ln(bind)3L]∙H2O compounds. However, the data also suggest that the water acts as a coordinated molecule in the [Ln(aind)3L(H2O)] ones. Theoretical geometries of the Eu3+-complexes have been optimized via the SPARKLE/AM1 Model for lanthanide complexes that are consistent with their luminescence experimental data. The photoluminescence properties of the Eu3+-compounds have been discussed in terms of experimental intensity parameters (Ω2 and Ω4), radiative (Arad), and non-radiative (Anrad) spontaneous emission coefficients. The higher values of emission quantum efficiency (η) of the [Eu(bind)3L]∙H2O compounds reflect the absence of luminescence-quenching water molecule in their first coordination spheres. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-11-01 |
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=S0103-50532014001100020 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014001100020 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5935/0103-5053.20140197 |
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.25 n.11 2014 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_ |
1750318176569131008 |