Photodegradation of 4-((4-N,N-dimethylamine)-benzylidene)-2- phenyl-oxazolone in different organic solvents - DOI: 10.4025/actascitechnol.v29i2.711

Detalhes bibliográficos
Autor(a) principal: Rosa, Mauricio Ferreira da
Data de Publicação: 2008
Outros Autores: Lobo, Viviane da Silva, Savariz, Franciele Cristina
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta scientiarum. Technology (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/711
Resumo: Thirteen (13) oxazolone derivatives were synthesized and the photochemical behavior of one of them was analyzed for solvent polarity when submitted to irradiation in 350 nm. When acetonitrile is used as solvent, photodegradation is faster when compared with n-hexane. The electronic spectra in acetonitrile showed an isosbestic point in 419 nm, indicating that only two species co-exist in solution. The addition of a second solvent destroyed this behavior. The others solvents did not show an isosbestic point.
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spelling Photodegradation of 4-((4-N,N-dimethylamine)-benzylidene)-2- phenyl-oxazolone in different organic solvents - DOI: 10.4025/actascitechnol.v29i2.711Fotodegradação da 4-((4-N,N-dimetilamino)-benzilideno)-2-fenil-oxazolona em diferentes solventes orgânicos - DOI: 10.4025/actascitechnol.v29i2.711oxazolonafotodegradaçãosolventes orgânicos1.06.00.00-0 QuímicaThirteen (13) oxazolone derivatives were synthesized and the photochemical behavior of one of them was analyzed for solvent polarity when submitted to irradiation in 350 nm. When acetonitrile is used as solvent, photodegradation is faster when compared with n-hexane. The electronic spectra in acetonitrile showed an isosbestic point in 419 nm, indicating that only two species co-exist in solution. The addition of a second solvent destroyed this behavior. The others solvents did not show an isosbestic point.Foram sintetizados 13 derivados oxazolônicos, e o comportamento fotoquímico de um deles foi analisado em função da polaridade do solvente utilizado quando irradiado no comprimento de onda de 350 nm. Observou-se que, em solvente polar aprótico (acetonitrila), a degradação ocorre mais rapidamente que em solvente apolar. Verifica-se, nos espectros de absorção no UV-vis em função do tempo de irradiação em acetonitrila, a presença de um ponto isobéstico em 419 nm, mostrando que somente duas espécies coexistem no meio. A adição de um segundo solvente destrói este comportamento. Para os outros solventes utilizados, não foi observada a presença de ponto isosbéstico.Universidade Estadual De Maringá2008-02-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/71110.4025/actascitechnol.v29i2.711Acta Scientiarum. Technology; Vol 29 No 2 (2007); 209-212Acta Scientiarum. Technology; v. 29 n. 2 (2007); 209-2121806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/711/373Rosa, Mauricio Ferreira daLobo, Viviane da SilvaSavariz, Franciele Cristinainfo:eu-repo/semantics/openAccess2024-05-17T13:02:30Zoai:periodicos.uem.br/ojs:article/711Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2024-05-17T13:02:30Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Photodegradation of 4-((4-N,N-dimethylamine)-benzylidene)-2- phenyl-oxazolone in different organic solvents - DOI: 10.4025/actascitechnol.v29i2.711
Fotodegradação da 4-((4-N,N-dimetilamino)-benzilideno)-2-fenil-oxazolona em diferentes solventes orgânicos - DOI: 10.4025/actascitechnol.v29i2.711
title Photodegradation of 4-((4-N,N-dimethylamine)-benzylidene)-2- phenyl-oxazolone in different organic solvents - DOI: 10.4025/actascitechnol.v29i2.711
spellingShingle Photodegradation of 4-((4-N,N-dimethylamine)-benzylidene)-2- phenyl-oxazolone in different organic solvents - DOI: 10.4025/actascitechnol.v29i2.711
Rosa, Mauricio Ferreira da
oxazolona
fotodegradação
solventes orgânicos
1.06.00.00-0 Química
title_short Photodegradation of 4-((4-N,N-dimethylamine)-benzylidene)-2- phenyl-oxazolone in different organic solvents - DOI: 10.4025/actascitechnol.v29i2.711
title_full Photodegradation of 4-((4-N,N-dimethylamine)-benzylidene)-2- phenyl-oxazolone in different organic solvents - DOI: 10.4025/actascitechnol.v29i2.711
title_fullStr Photodegradation of 4-((4-N,N-dimethylamine)-benzylidene)-2- phenyl-oxazolone in different organic solvents - DOI: 10.4025/actascitechnol.v29i2.711
title_full_unstemmed Photodegradation of 4-((4-N,N-dimethylamine)-benzylidene)-2- phenyl-oxazolone in different organic solvents - DOI: 10.4025/actascitechnol.v29i2.711
title_sort Photodegradation of 4-((4-N,N-dimethylamine)-benzylidene)-2- phenyl-oxazolone in different organic solvents - DOI: 10.4025/actascitechnol.v29i2.711
author Rosa, Mauricio Ferreira da
author_facet Rosa, Mauricio Ferreira da
Lobo, Viviane da Silva
Savariz, Franciele Cristina
author_role author
author2 Lobo, Viviane da Silva
Savariz, Franciele Cristina
author2_role author
author
dc.contributor.author.fl_str_mv Rosa, Mauricio Ferreira da
Lobo, Viviane da Silva
Savariz, Franciele Cristina
dc.subject.por.fl_str_mv oxazolona
fotodegradação
solventes orgânicos
1.06.00.00-0 Química
topic oxazolona
fotodegradação
solventes orgânicos
1.06.00.00-0 Química
description Thirteen (13) oxazolone derivatives were synthesized and the photochemical behavior of one of them was analyzed for solvent polarity when submitted to irradiation in 350 nm. When acetonitrile is used as solvent, photodegradation is faster when compared with n-hexane. The electronic spectra in acetonitrile showed an isosbestic point in 419 nm, indicating that only two species co-exist in solution. The addition of a second solvent destroyed this behavior. The others solvents did not show an isosbestic point.
publishDate 2008
dc.date.none.fl_str_mv 2008-02-12
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/711
10.4025/actascitechnol.v29i2.711
url http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/711
identifier_str_mv 10.4025/actascitechnol.v29i2.711
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/711/373
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual De Maringá
publisher.none.fl_str_mv Universidade Estadual De Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Technology; Vol 29 No 2 (2007); 209-212
Acta Scientiarum. Technology; v. 29 n. 2 (2007); 209-212
1806-2563
1807-8664
reponame:Acta scientiarum. Technology (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta scientiarum. Technology (Online)
collection Acta scientiarum. Technology (Online)
repository.name.fl_str_mv Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv ||actatech@uem.br
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