Synthesis, thermal behavior, and spectroscopic study of the solid nalidixate of selected light trivalent lanthanides
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10973-018-7042-0 http://hdl.handle.net/11449/170655 |
Resumo: | Solid-state [Ln(nal)3]·nH2O compounds, where Ln represents light trivalent lanthanide (La to Sm, except Pm), nal is nalidixate (C12H11N2O3), and n is the number of water molecules, were synthesized. Characterization and investigation were made by means of complexometry, elemental analysis, powder X-ray diffraction, Fourier transform infrared, near infrared (NIR) and diffuse reflectance spectroscopies, simultaneous thermogravimetry and differential thermal analysis, and differential scanning calorimetry. The dehydration process occurs in a single step up to 453 K. The final temperature of dehydration decreases from Pr(III) to Sm(III), and the thermal stability of anhydrous compounds increases from La(III) to Sm(III) (except Ce), and these behaviors are related to the decrease in the ionic radius of the lanthanide ion. The thermal decomposition of the anhydrous compounds occurs in three, four, or five consecutive steps, with formation of the respective oxides CeO2, Pr6O11, and Ln2O3 (Ln = La, Nd, and Sm) as final residues. The results also provide information concerning the composition and thermal behavior of these compounds. Spectroscopic studies in the UV–Vis and NIR regions provide information about the characteristics 4f–4f transitions for the Pr(III), Nd(III), and Sm(III) compounds, as well as the NIR region characteristic overtone and combination bands of the compounds. |
id |
UNSP_79758aa038feb7902d012525ac9a3627 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/170655 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Synthesis, thermal behavior, and spectroscopic study of the solid nalidixate of selected light trivalent lanthanidesCharacterizationNalidixatesNalidixic acidSpectroscopic studySynthesisThermal studyTrivalent lanthanidesSolid-state [Ln(nal)3]·nH2O compounds, where Ln represents light trivalent lanthanide (La to Sm, except Pm), nal is nalidixate (C12H11N2O3), and n is the number of water molecules, were synthesized. Characterization and investigation were made by means of complexometry, elemental analysis, powder X-ray diffraction, Fourier transform infrared, near infrared (NIR) and diffuse reflectance spectroscopies, simultaneous thermogravimetry and differential thermal analysis, and differential scanning calorimetry. The dehydration process occurs in a single step up to 453 K. The final temperature of dehydration decreases from Pr(III) to Sm(III), and the thermal stability of anhydrous compounds increases from La(III) to Sm(III) (except Ce), and these behaviors are related to the decrease in the ionic radius of the lanthanide ion. The thermal decomposition of the anhydrous compounds occurs in three, four, or five consecutive steps, with formation of the respective oxides CeO2, Pr6O11, and Ln2O3 (Ln = La, Nd, and Sm) as final residues. The results also provide information concerning the composition and thermal behavior of these compounds. Spectroscopic studies in the UV–Vis and NIR regions provide information about the characteristics 4f–4f transitions for the Pr(III), Nd(III), and Sm(III) compounds, as well as the NIR region characteristic overtone and combination bands of the compounds.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Faculdade de Engenharia Universidade Estadual Paulista (UNESP)Instituto de Química Universidade Estadual de Campinas (UNICAMP)Faculdade de Ciências Universidade Estadual Paulista (UNESP)Faculdade de Engenharia Universidade Estadual Paulista (UNESP)Faculdade de Ciências Universidade Estadual Paulista (UNESP)CNPq: 150759/2009FAPESP: 2006/06951-3CAPES: 472233/2008-4Universidade Estadual Paulista (Unesp)Universidade Estadual de Campinas (UNICAMP)Dobies Návia, Marcos Vinícius [UNESP]Alves Gálico, DiogoJunior Caires, Flávio [UNESP]Marques Luiz, José [UNESP]Spezia Nunes, Ronaldo [UNESP]2018-12-11T16:51:52Z2018-12-11T16:51:52Z2018-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1717-1727application/pdfhttp://dx.doi.org/10.1007/s10973-018-7042-0Journal of Thermal Analysis and Calorimetry, v. 132, n. 3, p. 1717-1727, 2018.1588-29261388-6150http://hdl.handle.net/11449/17065510.1007/s10973-018-7042-02-s2.0-850418453092-s2.0-85041845309.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Thermal Analysis and Calorimetry0,5870,587info:eu-repo/semantics/openAccess2023-11-27T06:11:42Zoai:repositorio.unesp.br:11449/170655Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:50:08.695736Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Synthesis, thermal behavior, and spectroscopic study of the solid nalidixate of selected light trivalent lanthanides |
title |
Synthesis, thermal behavior, and spectroscopic study of the solid nalidixate of selected light trivalent lanthanides |
spellingShingle |
Synthesis, thermal behavior, and spectroscopic study of the solid nalidixate of selected light trivalent lanthanides Dobies Návia, Marcos Vinícius [UNESP] Characterization Nalidixates Nalidixic acid Spectroscopic study Synthesis Thermal study Trivalent lanthanides |
title_short |
Synthesis, thermal behavior, and spectroscopic study of the solid nalidixate of selected light trivalent lanthanides |
title_full |
Synthesis, thermal behavior, and spectroscopic study of the solid nalidixate of selected light trivalent lanthanides |
title_fullStr |
Synthesis, thermal behavior, and spectroscopic study of the solid nalidixate of selected light trivalent lanthanides |
title_full_unstemmed |
Synthesis, thermal behavior, and spectroscopic study of the solid nalidixate of selected light trivalent lanthanides |
title_sort |
Synthesis, thermal behavior, and spectroscopic study of the solid nalidixate of selected light trivalent lanthanides |
author |
Dobies Návia, Marcos Vinícius [UNESP] |
author_facet |
Dobies Návia, Marcos Vinícius [UNESP] Alves Gálico, Diogo Junior Caires, Flávio [UNESP] Marques Luiz, José [UNESP] Spezia Nunes, Ronaldo [UNESP] |
author_role |
author |
author2 |
Alves Gálico, Diogo Junior Caires, Flávio [UNESP] Marques Luiz, José [UNESP] Spezia Nunes, Ronaldo [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Estadual de Campinas (UNICAMP) |
dc.contributor.author.fl_str_mv |
Dobies Návia, Marcos Vinícius [UNESP] Alves Gálico, Diogo Junior Caires, Flávio [UNESP] Marques Luiz, José [UNESP] Spezia Nunes, Ronaldo [UNESP] |
dc.subject.por.fl_str_mv |
Characterization Nalidixates Nalidixic acid Spectroscopic study Synthesis Thermal study Trivalent lanthanides |
topic |
Characterization Nalidixates Nalidixic acid Spectroscopic study Synthesis Thermal study Trivalent lanthanides |
description |
Solid-state [Ln(nal)3]·nH2O compounds, where Ln represents light trivalent lanthanide (La to Sm, except Pm), nal is nalidixate (C12H11N2O3), and n is the number of water molecules, were synthesized. Characterization and investigation were made by means of complexometry, elemental analysis, powder X-ray diffraction, Fourier transform infrared, near infrared (NIR) and diffuse reflectance spectroscopies, simultaneous thermogravimetry and differential thermal analysis, and differential scanning calorimetry. The dehydration process occurs in a single step up to 453 K. The final temperature of dehydration decreases from Pr(III) to Sm(III), and the thermal stability of anhydrous compounds increases from La(III) to Sm(III) (except Ce), and these behaviors are related to the decrease in the ionic radius of the lanthanide ion. The thermal decomposition of the anhydrous compounds occurs in three, four, or five consecutive steps, with formation of the respective oxides CeO2, Pr6O11, and Ln2O3 (Ln = La, Nd, and Sm) as final residues. The results also provide information concerning the composition and thermal behavior of these compounds. Spectroscopic studies in the UV–Vis and NIR regions provide information about the characteristics 4f–4f transitions for the Pr(III), Nd(III), and Sm(III) compounds, as well as the NIR region characteristic overtone and combination bands of the compounds. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-11T16:51:52Z 2018-12-11T16:51:52Z 2018-06-01 |
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://dx.doi.org/10.1007/s10973-018-7042-0 Journal of Thermal Analysis and Calorimetry, v. 132, n. 3, p. 1717-1727, 2018. 1588-2926 1388-6150 http://hdl.handle.net/11449/170655 10.1007/s10973-018-7042-0 2-s2.0-85041845309 2-s2.0-85041845309.pdf |
url |
http://dx.doi.org/10.1007/s10973-018-7042-0 http://hdl.handle.net/11449/170655 |
identifier_str_mv |
Journal of Thermal Analysis and Calorimetry, v. 132, n. 3, p. 1717-1727, 2018. 1588-2926 1388-6150 10.1007/s10973-018-7042-0 2-s2.0-85041845309 2-s2.0-85041845309.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Thermal Analysis and Calorimetry 0,587 0,587 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1717-1727 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128988279734272 |