Thermal properties of metal-metal bonded Pd(I) complexes supported onto porous Vycor glass
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Anais da Academia Brasileira de Ciências (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000200004 |
Resumo: | Thermal behavior of the complexes Pd2(dppm)2Cl2, Pd2(dppm)2(SnCl3)Cl and Pd2(dppm)2(SnCl3)2 (dppm = bis[diphenylphosphino(methane)], ((C6H5)2PCH2P(C6H5)2) in the solid state and immobilized onto porous Vycor glass was studied. Similar decomposition mechanisms were observed for the solid and immobilized complexes, with a small thermal stabilization upon immobilization. The decomposition products were characterized by X-ray diffractometry, Raman and diffuse reflectance infrared spectroscopy, which indicated the presence of a mixture of metallic palladium and oxidized species such as PdO,condensed phosphates, SnO2 and SnP2O7. According to X-ray diffractometry, the decomposition products of the immobilized complexes presented higher amounts of PdO than the solid-state residues, probably as an effect of interactions with silanol groups present in the glass surface. |
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Anais da Academia Brasileira de Ciências (Online) |
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Thermal properties of metal-metal bonded Pd(I) complexes supported onto porous Vycor glasspalladium(I) complexporous Vycor glassbis[diphenylphosphino(methane)]thermogravimetric analysisThermal behavior of the complexes Pd2(dppm)2Cl2, Pd2(dppm)2(SnCl3)Cl and Pd2(dppm)2(SnCl3)2 (dppm = bis[diphenylphosphino(methane)], ((C6H5)2PCH2P(C6H5)2) in the solid state and immobilized onto porous Vycor glass was studied. Similar decomposition mechanisms were observed for the solid and immobilized complexes, with a small thermal stabilization upon immobilization. The decomposition products were characterized by X-ray diffractometry, Raman and diffuse reflectance infrared spectroscopy, which indicated the presence of a mixture of metallic palladium and oxidized species such as PdO,condensed phosphates, SnO2 and SnP2O7. According to X-ray diffractometry, the decomposition products of the immobilized complexes presented higher amounts of PdO than the solid-state residues, probably as an effect of interactions with silanol groups present in the glass surface.Academia Brasileira de Ciências2008-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000200004Anais da Academia Brasileira de Ciências v.80 n.2 2008reponame:Anais da Academia Brasileira de Ciências (Online)instname:Academia Brasileira de Ciências (ABC)instacron:ABC10.1590/S0001-37652008000200004info:eu-repo/semantics/openAccessGimenez,Iara F.Alves,Oswaldo L.eng2008-05-14T00:00:00Zoai:scielo:S0001-37652008000200004Revistahttp://www.scielo.br/aabchttps://old.scielo.br/oai/scielo-oai.php||aabc@abc.org.br1678-26900001-3765opendoar:2008-05-14T00:00Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)false |
dc.title.none.fl_str_mv |
Thermal properties of metal-metal bonded Pd(I) complexes supported onto porous Vycor glass |
title |
Thermal properties of metal-metal bonded Pd(I) complexes supported onto porous Vycor glass |
spellingShingle |
Thermal properties of metal-metal bonded Pd(I) complexes supported onto porous Vycor glass Gimenez,Iara F. palladium(I) complex porous Vycor glass bis[diphenylphosphino(methane)] thermogravimetric analysis |
title_short |
Thermal properties of metal-metal bonded Pd(I) complexes supported onto porous Vycor glass |
title_full |
Thermal properties of metal-metal bonded Pd(I) complexes supported onto porous Vycor glass |
title_fullStr |
Thermal properties of metal-metal bonded Pd(I) complexes supported onto porous Vycor glass |
title_full_unstemmed |
Thermal properties of metal-metal bonded Pd(I) complexes supported onto porous Vycor glass |
title_sort |
Thermal properties of metal-metal bonded Pd(I) complexes supported onto porous Vycor glass |
author |
Gimenez,Iara F. |
author_facet |
Gimenez,Iara F. Alves,Oswaldo L. |
author_role |
author |
author2 |
Alves,Oswaldo L. |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Gimenez,Iara F. Alves,Oswaldo L. |
dc.subject.por.fl_str_mv |
palladium(I) complex porous Vycor glass bis[diphenylphosphino(methane)] thermogravimetric analysis |
topic |
palladium(I) complex porous Vycor glass bis[diphenylphosphino(methane)] thermogravimetric analysis |
description |
Thermal behavior of the complexes Pd2(dppm)2Cl2, Pd2(dppm)2(SnCl3)Cl and Pd2(dppm)2(SnCl3)2 (dppm = bis[diphenylphosphino(methane)], ((C6H5)2PCH2P(C6H5)2) in the solid state and immobilized onto porous Vycor glass was studied. Similar decomposition mechanisms were observed for the solid and immobilized complexes, with a small thermal stabilization upon immobilization. The decomposition products were characterized by X-ray diffractometry, Raman and diffuse reflectance infrared spectroscopy, which indicated the presence of a mixture of metallic palladium and oxidized species such as PdO,condensed phosphates, SnO2 and SnP2O7. According to X-ray diffractometry, the decomposition products of the immobilized complexes presented higher amounts of PdO than the solid-state residues, probably as an effect of interactions with silanol groups present in the glass surface. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-06-01 |
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=S0001-37652008000200004 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000200004 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0001-37652008000200004 |
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 |
Academia Brasileira de Ciências |
publisher.none.fl_str_mv |
Academia Brasileira de Ciências |
dc.source.none.fl_str_mv |
Anais da Academia Brasileira de Ciências v.80 n.2 2008 reponame:Anais da Academia Brasileira de Ciências (Online) instname:Academia Brasileira de Ciências (ABC) instacron:ABC |
instname_str |
Academia Brasileira de Ciências (ABC) |
instacron_str |
ABC |
institution |
ABC |
reponame_str |
Anais da Academia Brasileira de Ciências (Online) |
collection |
Anais da Academia Brasileira de Ciências (Online) |
repository.name.fl_str_mv |
Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC) |
repository.mail.fl_str_mv |
||aabc@abc.org.br |
_version_ |
1754302856920301568 |