X-ray diffraction and Mössbauer spectrometry studies of molecular iron compounds

Detalhes bibliográficos
Autor(a) principal: Costa, B. F. O.
Data de Publicação: 2007
Outros Autores: Greneche, J. M., Silva, M. Ramos, Pereira, L. C. J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/4364
https://doi.org/10.1016/j.nima.2007.05.066
Resumo: We have synthesized two new iron complexes that have been structural and magnetically characterized: diphenylguanidinium hexafluoroferrate and hexakisvaline-oxo-triiron(III) chloride. The former crystallizes as monomers with the fluoride ions six-coordinating the Fe(II) ion. Valine iron chloride is comprised of trinuclear complexes, with a well ordered oxo-centered carboxylate core and some disordered organic ligands. The magnetization curves show a paramagnetic behavior. The Mössbauer measurements as a function of temperature show a paramagnetic behavior at 300 K with two Fe sites (one quadrupolar doublet and a broad single line). At 4.2 K, besides the quadrupolar doublet there is a magnetic component which can be attributed to a slow relaxation phenomenon associated to these samples.
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spelling X-ray diffraction and Mössbauer spectrometry studies of molecular iron compoundsTrinuclear iron compoundsMössbauer spectrometryX-ray diffractionWe have synthesized two new iron complexes that have been structural and magnetically characterized: diphenylguanidinium hexafluoroferrate and hexakisvaline-oxo-triiron(III) chloride. The former crystallizes as monomers with the fluoride ions six-coordinating the Fe(II) ion. Valine iron chloride is comprised of trinuclear complexes, with a well ordered oxo-centered carboxylate core and some disordered organic ligands. The magnetization curves show a paramagnetic behavior. The Mössbauer measurements as a function of temperature show a paramagnetic behavior at 300 K with two Fe sites (one quadrupolar doublet and a broad single line). At 4.2 K, besides the quadrupolar doublet there is a magnetic component which can be attributed to a slow relaxation phenomenon associated to these samples.http://www.sciencedirect.com/science/article/B6TJM-4NRK4D4-K/1/873788c647c12dac8ebec43cdbf40f5e2007info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleaplication/PDFhttp://hdl.handle.net/10316/4364http://hdl.handle.net/10316/4364https://doi.org/10.1016/j.nima.2007.05.066engNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 580:1 (2007) 408-411Costa, B. F. O.Greneche, J. M.Silva, M. RamosPereira, L. C. J.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2021-10-15T07:47:19Zoai:estudogeral.uc.pt:10316/4364Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:59:43.443800Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv X-ray diffraction and Mössbauer spectrometry studies of molecular iron compounds
title X-ray diffraction and Mössbauer spectrometry studies of molecular iron compounds
spellingShingle X-ray diffraction and Mössbauer spectrometry studies of molecular iron compounds
Costa, B. F. O.
Trinuclear iron compounds
Mössbauer spectrometry
X-ray diffraction
title_short X-ray diffraction and Mössbauer spectrometry studies of molecular iron compounds
title_full X-ray diffraction and Mössbauer spectrometry studies of molecular iron compounds
title_fullStr X-ray diffraction and Mössbauer spectrometry studies of molecular iron compounds
title_full_unstemmed X-ray diffraction and Mössbauer spectrometry studies of molecular iron compounds
title_sort X-ray diffraction and Mössbauer spectrometry studies of molecular iron compounds
author Costa, B. F. O.
author_facet Costa, B. F. O.
Greneche, J. M.
Silva, M. Ramos
Pereira, L. C. J.
author_role author
author2 Greneche, J. M.
Silva, M. Ramos
Pereira, L. C. J.
author2_role author
author
author
dc.contributor.author.fl_str_mv Costa, B. F. O.
Greneche, J. M.
Silva, M. Ramos
Pereira, L. C. J.
dc.subject.por.fl_str_mv Trinuclear iron compounds
Mössbauer spectrometry
X-ray diffraction
topic Trinuclear iron compounds
Mössbauer spectrometry
X-ray diffraction
description We have synthesized two new iron complexes that have been structural and magnetically characterized: diphenylguanidinium hexafluoroferrate and hexakisvaline-oxo-triiron(III) chloride. The former crystallizes as monomers with the fluoride ions six-coordinating the Fe(II) ion. Valine iron chloride is comprised of trinuclear complexes, with a well ordered oxo-centered carboxylate core and some disordered organic ligands. The magnetization curves show a paramagnetic behavior. The Mössbauer measurements as a function of temperature show a paramagnetic behavior at 300 K with two Fe sites (one quadrupolar doublet and a broad single line). At 4.2 K, besides the quadrupolar doublet there is a magnetic component which can be attributed to a slow relaxation phenomenon associated to these samples.
publishDate 2007
dc.date.none.fl_str_mv 2007
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10316/4364
http://hdl.handle.net/10316/4364
https://doi.org/10.1016/j.nima.2007.05.066
url http://hdl.handle.net/10316/4364
https://doi.org/10.1016/j.nima.2007.05.066
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 580:1 (2007) 408-411
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv aplication/PDF
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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