Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquid

Autores
Gutkowski, Karin; Japas, María Laura; Aramendia, Pedro Francisco
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Steady-state and time-resolved emission of 9-dicyanovinyl julolidine (DCVJ) in 1-butyl 3-methyl imidazolium tetrafluoroborate ([bmim][BF4]) were studied. The emission spectrum of DCVJ, obtained after properly subtracting the fluorescence of the solvent, peaks at similar wavelength as in acetonitrile, and its total intensity decreases with temperature, as it does in normal liquids. However, the activation energy of the radiationless process is much lower than that of [bmim][BF4] viscosity, which points to a free volume controlled deactivation for DCVJ excited state.
Fil: Gutkowski, Karin. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Japas, María Laura. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina
Fil: Aramendia, Pedro Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Materia
ionic liquids
dicyanovinyljulolidine
fluorescence
solvation
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/103414
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquidGutkowski, KarinJapas, María LauraAramendia, Pedro Franciscoionic liquidsdicyanovinyljulolidinefluorescencesolvationhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Steady-state and time-resolved emission of 9-dicyanovinyl julolidine (DCVJ) in 1-butyl 3-methyl imidazolium tetrafluoroborate ([bmim][BF4]) were studied. The emission spectrum of DCVJ, obtained after properly subtracting the fluorescence of the solvent, peaks at similar wavelength as in acetonitrile, and its total intensity decreases with temperature, as it does in normal liquids. However, the activation energy of the radiationless process is much lower than that of [bmim][BF4] viscosity, which points to a free volume controlled deactivation for DCVJ excited state.Fil: Gutkowski, Karin. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; ArgentinaFil: Japas, María Laura. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; ArgentinaFil: Aramendia, Pedro Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaElsevier Science2006-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/103414Gutkowski, Karin; Japas, María Laura; Aramendia, Pedro Francisco; Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquid; Elsevier Science; Chemical Physics Letters; 426; 4-6; 8-2006; 329-3330009-2614CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.cplett.2006.06.027info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0009261406008712info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:05:06Zoai:ri.conicet.gov.ar:11336/103414instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:05:06.483CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquid
title Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquid
spellingShingle Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquid
Gutkowski, Karin
ionic liquids
dicyanovinyljulolidine
fluorescence
solvation
title_short Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquid
title_full Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquid
title_fullStr Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquid
title_full_unstemmed Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquid
title_sort Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquid
dc.creator.none.fl_str_mv Gutkowski, Karin
Japas, María Laura
Aramendia, Pedro Francisco
author Gutkowski, Karin
author_facet Gutkowski, Karin
Japas, María Laura
Aramendia, Pedro Francisco
author_role author
author2 Japas, María Laura
Aramendia, Pedro Francisco
author2_role author
author
dc.subject.none.fl_str_mv ionic liquids
dicyanovinyljulolidine
fluorescence
solvation
topic ionic liquids
dicyanovinyljulolidine
fluorescence
solvation
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Steady-state and time-resolved emission of 9-dicyanovinyl julolidine (DCVJ) in 1-butyl 3-methyl imidazolium tetrafluoroborate ([bmim][BF4]) were studied. The emission spectrum of DCVJ, obtained after properly subtracting the fluorescence of the solvent, peaks at similar wavelength as in acetonitrile, and its total intensity decreases with temperature, as it does in normal liquids. However, the activation energy of the radiationless process is much lower than that of [bmim][BF4] viscosity, which points to a free volume controlled deactivation for DCVJ excited state.
Fil: Gutkowski, Karin. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Japas, María Laura. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina
Fil: Aramendia, Pedro Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
description Steady-state and time-resolved emission of 9-dicyanovinyl julolidine (DCVJ) in 1-butyl 3-methyl imidazolium tetrafluoroborate ([bmim][BF4]) were studied. The emission spectrum of DCVJ, obtained after properly subtracting the fluorescence of the solvent, peaks at similar wavelength as in acetonitrile, and its total intensity decreases with temperature, as it does in normal liquids. However, the activation energy of the radiationless process is much lower than that of [bmim][BF4] viscosity, which points to a free volume controlled deactivation for DCVJ excited state.
publishDate 2006
dc.date.none.fl_str_mv 2006-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/103414
Gutkowski, Karin; Japas, María Laura; Aramendia, Pedro Francisco; Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquid; Elsevier Science; Chemical Physics Letters; 426; 4-6; 8-2006; 329-333
0009-2614
CONICET Digital
CONICET
url http://hdl.handle.net/11336/103414
identifier_str_mv Gutkowski, Karin; Japas, María Laura; Aramendia, Pedro Francisco; Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquid; Elsevier Science; Chemical Physics Letters; 426; 4-6; 8-2006; 329-333
0009-2614
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cplett.2006.06.027
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0009261406008712
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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