Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquid

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...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Gutkowski, K.I., Japas, M.L., Aramendía, P.F.
Formato: JOUR
Materias:
Acetonitrile
Activation energy
Fluorescence
Ground state
Spectrum analysis
Thermal effects
Viscosity measurement
Volume control (spatial)
Dicyanovinyl julolidine
Imidazolium tetrafluoroborate
Ionic liquids
Room temperature
Vinyl resins
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00092614_v426_n4-6_p329_Gutkowski
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00092614_v426_n4-6_p329_Gutkowski
record_format dspace
spelling todo:paper_00092614_v426_n4-6_p329_Gutkowski2023-10-03T14:08:24Z Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquid Gutkowski, K.I. Japas, M.L. Aramendía, P.F. Acetonitrile Activation energy Fluorescence Ground state Spectrum analysis Thermal effects Viscosity measurement Volume control (spatial) Dicyanovinyl julolidine Imidazolium tetrafluoroborate Ionic liquids Room temperature Vinyl resins 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. © 2006 Elsevier B.V. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00092614_v426_n4-6_p329_Gutkowski
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Acetonitrile
Activation energy
Fluorescence
Ground state
Spectrum analysis
Thermal effects
Viscosity measurement
Volume control (spatial)
Dicyanovinyl julolidine
Imidazolium tetrafluoroborate
Ionic liquids
Room temperature
Vinyl resins
spellingShingle Acetonitrile
Activation energy
Fluorescence
Ground state
Spectrum analysis
Thermal effects
Viscosity measurement
Volume control (spatial)
Dicyanovinyl julolidine
Imidazolium tetrafluoroborate
Ionic liquids
Room temperature
Vinyl resins
Gutkowski, K.I.
Japas, M.L.
Aramendía, P.F.
Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquid
topic_facet Acetonitrile
Activation energy
Fluorescence
Ground state
Spectrum analysis
Thermal effects
Viscosity measurement
Volume control (spatial)
Dicyanovinyl julolidine
Imidazolium tetrafluoroborate
Ionic liquids
Room temperature
Vinyl resins
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. © 2006 Elsevier B.V. All rights reserved.
format JOUR
author Gutkowski, K.I.
Japas, M.L.
Aramendía, P.F.
author_facet Gutkowski, K.I.
Japas, M.L.
Aramendía, P.F.
author_sort Gutkowski, K.I.
title Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquid
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
url http://hdl.handle.net/20.500.12110/paper_00092614_v426_n4-6_p329_Gutkowski
work_keys_str_mv AT gutkowskiki fluorescenceofdicyanovinyljulolidineinaroomtemperatureionicliquid
AT japasml fluorescenceofdicyanovinyljulolidineinaroomtemperatureionicliquid
AT aramendiapf fluorescenceofdicyanovinyljulolidineinaroomtemperatureionicliquid
_version_ 1807314880820150272

Ejemplares similares