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dc.contributor.author
Cid, Lucía del Carmen Isabel
dc.contributor.author
Ginzberg, Berta
dc.contributor.author
Sorichetti, Patricio Aníbal
dc.date.available
2024-09-19T10:11:43Z
dc.date.issued
2008-06
dc.identifier.citation
Cid, Lucía del Carmen Isabel; Ginzberg, Berta; Sorichetti, Patricio Aníbal; Analysis of fluorescence spectra of PRODAN in protic solvents as the superposition of two Gaussian functions; Taylor & Francis Ltd; Physics and Chemistry of Liquids; 46; 3; 6-2008; 287-298
dc.identifier.issn
0031-9104
dc.identifier.uri
http://hdl.handle.net/11336/244578
dc.description.abstract
The steady-state fluorescence emission spectra of 6-propionyl-2-dimethylaminonaphthalene(PRODAN) in aqueous solutions of methanol, ethanol and 1-propanol were studied in a widerange of concentrations. The flourescence of PRODAN was also studied in aqueous solutions(from 0.003 to 0.021 mole/liter) of dodecyltrimethylammonium bromide (DTAB),a micelle-forming ionic surfactant. In all cases, experimental data, as a function of wavelength,are very well fitted by the sum of two Gaussian functions. In alcohol solutions, the maximumof lower wavelength depends linearly both on concentration and polarizability. In DTABsolutions, the maximum of higher wavelength varies smoothly with concentration, but thelower wavelength maximum changes abruptly at the Critical Micellar Concentration.Results are explained by assuming that the fluorescence emission of PRODAN is originatedin transitions from two excited states which are close in energy but have dissimilar interactionswith the probe environment.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis Ltd
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
PRODAN
dc.subject
STOKES SHIFT
dc.subject
EMISSION SPECTRA
dc.subject
ALCOHOL WATER SOLUTIONS
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Físico-Química, Ciencia de los Polímeros, Electroquímica
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Ciencias Químicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Analysis of fluorescence spectra of PRODAN in protic solvents as the superposition of two Gaussian functions
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-09-18T13:16:56Z
dc.journal.volume
46
dc.journal.number
3
dc.journal.pagination
287-298
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Cid, Lucía del Carmen Isabel. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Química; Argentina
dc.description.fil
Fil: Ginzberg, Berta. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Sorichetti, Patricio Aníbal. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física; Argentina
dc.journal.title
Physics and Chemistry of Liquids
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/00319100701594198
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/00319100701594198
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