Artículo

Fluorescence of dicyanovinyl julolidine in a room-temperature ionic liquid

Gutkowski, KarinIcon ; Japas, María Laura; Aramendia, Pedro FranciscoIcon
Fecha de publicación: 08/2006
Editorial: Elsevier Science
Revista: Chemical Physics Letters
ISSN: 0009-2614
Idioma: Inglés
Tipo de recurso: Artículo publicado

Resumen

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.
Palabras clave: ionic liquids , dicyanovinyljulolidine , fluorescence , solvation
 
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/103414
DOI: https://doi.org/10.1016/j.cplett.2006.06.027
URL: https://www.sciencedirect.com/science/article/abs/pii/S0009261406008712
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Articulos(CIBION) [140]
Articulos de CENTRO DE INVESTIGACIONES EN BIONANOCIENCIAS "ELIZABETH JARES ERIJMAN"
Citación
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
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