Photophysical behavior of new acridine(1,8)dione dyes

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The photophysical behavior of five acridine(1,8)dione dyes of biological interest was studied by absorption and fluorescence spectroscopy, photoacoustics and time resolved phosphorescence techniques. The results obtained in ethanol and acetonitrile solutions show that the main spectroscopic and phot...

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Autores principales: Cabanzo Hernández, R., David Gara, P.M., Velasco, D.M., Erra-Balsells, R., Bilmes, G.M.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_1474905X_v12_n11_p1968_CabanzoHernandez
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_1474905X_v12_n11_p1968_CabanzoHernandez
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spelling todo:paper_1474905X_v12_n11_p1968_CabanzoHernandez2023-10-03T16:18:16Z Photophysical behavior of new acridine(1,8)dione dyes Cabanzo Hernández, R. David Gara, P.M. Velasco, D.M. Erra-Balsells, R. Bilmes, G.M. The photophysical behavior of five acridine(1,8)dione dyes of biological interest was studied by absorption and fluorescence spectroscopy, photoacoustics and time resolved phosphorescence techniques. The results obtained in ethanol and acetonitrile solutions show that the main spectroscopic and photophysical parameters of these compounds depend strongly on both the solvent and oxygen concentrations. Oxygen completely quenched the triplet state of all dyes. In nitrogen-saturated solutions, quantum efficiencies of triplet formation in ethanol were lower than those in acetonitrile. © The Royal Society of Chemistry and Owner Societies. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_1474905X_v12_n11_p1968_CabanzoHernandez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The photophysical behavior of five acridine(1,8)dione dyes of biological interest was studied by absorption and fluorescence spectroscopy, photoacoustics and time resolved phosphorescence techniques. The results obtained in ethanol and acetonitrile solutions show that the main spectroscopic and photophysical parameters of these compounds depend strongly on both the solvent and oxygen concentrations. Oxygen completely quenched the triplet state of all dyes. In nitrogen-saturated solutions, quantum efficiencies of triplet formation in ethanol were lower than those in acetonitrile. © The Royal Society of Chemistry and Owner Societies.
format JOUR
author Cabanzo Hernández, R.
David Gara, P.M.
Velasco, D.M.
Erra-Balsells, R.
Bilmes, G.M.
spellingShingle Cabanzo Hernández, R.
David Gara, P.M.
Velasco, D.M.
Erra-Balsells, R.
Bilmes, G.M.
Photophysical behavior of new acridine(1,8)dione dyes
author_facet Cabanzo Hernández, R.
David Gara, P.M.
Velasco, D.M.
Erra-Balsells, R.
Bilmes, G.M.
author_sort Cabanzo Hernández, R.
title Photophysical behavior of new acridine(1,8)dione dyes
title_short Photophysical behavior of new acridine(1,8)dione dyes
title_full Photophysical behavior of new acridine(1,8)dione dyes
title_fullStr Photophysical behavior of new acridine(1,8)dione dyes
title_full_unstemmed Photophysical behavior of new acridine(1,8)dione dyes
title_sort photophysical behavior of new acridine(1,8)dione dyes
url http://hdl.handle.net/20.500.12110/paper_1474905X_v12_n11_p1968_CabanzoHernandez
work_keys_str_mv AT cabanzohernandezr photophysicalbehaviorofnewacridine18dionedyes
AT davidgarapm photophysicalbehaviorofnewacridine18dionedyes
AT velascodm photophysicalbehaviorofnewacridine18dionedyes
AT errabalsellsr photophysicalbehaviorofnewacridine18dionedyes
AT bilmesgm photophysicalbehaviorofnewacridine18dionedyes
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