Synthesis, characterization and molecular structures of the pyridinium trans-Bis(pyridine)tetrachlororuthenate(III) and pyridinium trans-(carbonyl)(pyridine)tetrachlororuthenate(III)
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=S0103-50531997000600013 |
Resumo: | The pyHtrans-RuCl4(py)2(1) and pyHtrans-RuCl4(CO)(py)(2) complexes were synthesized and found to crystallize in space group P2(1)/n, Z = 4 with a = 8.080(7), b = 22.503(7), c = 10.125(6) Å, b = 93.19(6)° for (1) and a = 7.821(1), b = 10.337(3), c = 19.763(3) Å, b = 93.07(1)° for (2). The structures were solved by Patterson and difference Fourier techniques and refined to R = 0.062 for (1) and R = 0.038 for (2). In both cases the Ru(III) ion is octahedrally coordinated to four co-planar chlorine atoms, the nitrogen of the pyridine rings or carbon from the carbon monoxide. Another protonated pyridine group, which forms the counter-cation completes the crystal structures. The UV-Vis absorption spectra show three bands: (1) 360 (e = 1180 M-1 cm-1), 441 (e = 3200 M-1 cm-1) and 532 nm (e = 400 M-1 cm-1); (2) 315(e = 1150 M-1 cm-1), 442 (e = 3170 M-1 cm-1) and 530 nm (e = 390 M-1 cm-1). The two higher energy bands were associated with ligand-to-metal charge transfer transitions and a third band at lower energy was assigned to a d-d transition. Low temperature EPR data confirmed the presence of the paramagnetically active Ru(III) and it is consistent with axial symmetry of the complexes. The position of the stretching CO band in complex (2) is discussed in terms of metal-CO backbonding. |
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Synthesis, characterization and molecular structures of the pyridinium trans-Bis(pyridine)tetrachlororuthenate(III) and pyridinium trans-(carbonyl)(pyridine)tetrachlororuthenate(III)rutheniumtetrachlororuthenate(III)X-ray structuresThe pyHtrans-RuCl4(py)2(1) and pyHtrans-RuCl4(CO)(py)(2) complexes were synthesized and found to crystallize in space group P2(1)/n, Z = 4 with a = 8.080(7), b = 22.503(7), c = 10.125(6) Å, b = 93.19(6)° for (1) and a = 7.821(1), b = 10.337(3), c = 19.763(3) Å, b = 93.07(1)° for (2). The structures were solved by Patterson and difference Fourier techniques and refined to R = 0.062 for (1) and R = 0.038 for (2). In both cases the Ru(III) ion is octahedrally coordinated to four co-planar chlorine atoms, the nitrogen of the pyridine rings or carbon from the carbon monoxide. Another protonated pyridine group, which forms the counter-cation completes the crystal structures. The UV-Vis absorption spectra show three bands: (1) 360 (e = 1180 M-1 cm-1), 441 (e = 3200 M-1 cm-1) and 532 nm (e = 400 M-1 cm-1); (2) 315(e = 1150 M-1 cm-1), 442 (e = 3170 M-1 cm-1) and 530 nm (e = 390 M-1 cm-1). The two higher energy bands were associated with ligand-to-metal charge transfer transitions and a third band at lower energy was assigned to a d-d transition. Low temperature EPR data confirmed the presence of the paramagnetically active Ru(III) and it is consistent with axial symmetry of the complexes. The position of the stretching CO band in complex (2) is discussed in terms of metal-CO backbonding.Sociedade Brasileira de Química1997-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000600013Journal of the Brazilian Chemical Society v.8 n.6 1997reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50531997000600013info:eu-repo/semantics/openAccessBatista,Alzir A.Onofre,Sandra A.Queiroz,Salete L.Oliva,GlauciusFontes,Marcos R.M.Nascimento,Otaciro R.eng2010-07-23T00:00:00Zoai:scielo:S0103-50531997000600013Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2010-07-23T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Synthesis, characterization and molecular structures of the pyridinium trans-Bis(pyridine)tetrachlororuthenate(III) and pyridinium trans-(carbonyl)(pyridine)tetrachlororuthenate(III) |
title |
Synthesis, characterization and molecular structures of the pyridinium trans-Bis(pyridine)tetrachlororuthenate(III) and pyridinium trans-(carbonyl)(pyridine)tetrachlororuthenate(III) |
spellingShingle |
Synthesis, characterization and molecular structures of the pyridinium trans-Bis(pyridine)tetrachlororuthenate(III) and pyridinium trans-(carbonyl)(pyridine)tetrachlororuthenate(III) Batista,Alzir A. ruthenium tetrachlororuthenate(III) X-ray structures |
title_short |
Synthesis, characterization and molecular structures of the pyridinium trans-Bis(pyridine)tetrachlororuthenate(III) and pyridinium trans-(carbonyl)(pyridine)tetrachlororuthenate(III) |
title_full |
Synthesis, characterization and molecular structures of the pyridinium trans-Bis(pyridine)tetrachlororuthenate(III) and pyridinium trans-(carbonyl)(pyridine)tetrachlororuthenate(III) |
title_fullStr |
Synthesis, characterization and molecular structures of the pyridinium trans-Bis(pyridine)tetrachlororuthenate(III) and pyridinium trans-(carbonyl)(pyridine)tetrachlororuthenate(III) |
title_full_unstemmed |
Synthesis, characterization and molecular structures of the pyridinium trans-Bis(pyridine)tetrachlororuthenate(III) and pyridinium trans-(carbonyl)(pyridine)tetrachlororuthenate(III) |
title_sort |
Synthesis, characterization and molecular structures of the pyridinium trans-Bis(pyridine)tetrachlororuthenate(III) and pyridinium trans-(carbonyl)(pyridine)tetrachlororuthenate(III) |
author |
Batista,Alzir A. |
author_facet |
Batista,Alzir A. Onofre,Sandra A. Queiroz,Salete L. Oliva,Glaucius Fontes,Marcos R.M. Nascimento,Otaciro R. |
author_role |
author |
author2 |
Onofre,Sandra A. Queiroz,Salete L. Oliva,Glaucius Fontes,Marcos R.M. Nascimento,Otaciro R. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Batista,Alzir A. Onofre,Sandra A. Queiroz,Salete L. Oliva,Glaucius Fontes,Marcos R.M. Nascimento,Otaciro R. |
dc.subject.por.fl_str_mv |
ruthenium tetrachlororuthenate(III) X-ray structures |
topic |
ruthenium tetrachlororuthenate(III) X-ray structures |
description |
The pyHtrans-RuCl4(py)2(1) and pyHtrans-RuCl4(CO)(py)(2) complexes were synthesized and found to crystallize in space group P2(1)/n, Z = 4 with a = 8.080(7), b = 22.503(7), c = 10.125(6) Å, b = 93.19(6)° for (1) and a = 7.821(1), b = 10.337(3), c = 19.763(3) Å, b = 93.07(1)° for (2). The structures were solved by Patterson and difference Fourier techniques and refined to R = 0.062 for (1) and R = 0.038 for (2). In both cases the Ru(III) ion is octahedrally coordinated to four co-planar chlorine atoms, the nitrogen of the pyridine rings or carbon from the carbon monoxide. Another protonated pyridine group, which forms the counter-cation completes the crystal structures. The UV-Vis absorption spectra show three bands: (1) 360 (e = 1180 M-1 cm-1), 441 (e = 3200 M-1 cm-1) and 532 nm (e = 400 M-1 cm-1); (2) 315(e = 1150 M-1 cm-1), 442 (e = 3170 M-1 cm-1) and 530 nm (e = 390 M-1 cm-1). The two higher energy bands were associated with ligand-to-metal charge transfer transitions and a third band at lower energy was assigned to a d-d transition. Low temperature EPR data confirmed the presence of the paramagnetically active Ru(III) and it is consistent with axial symmetry of the complexes. The position of the stretching CO band in complex (2) is discussed in terms of metal-CO backbonding. |
publishDate |
1997 |
dc.date.none.fl_str_mv |
1997-01-01 |
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=S0103-50531997000600013 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000600013 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50531997000600013 |
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.6 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 |
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1750318163097026560 |