The photophysics of nitrocarbazoles used as UV-MALDI matrices: Comparative spectroscopic and optoacoustic studies of mononitro- and dinitrocarbazoles

The photophysical behaviour of 1-nitrocarbazole, 3-nitrocarbazole, 1,6-dinitrocarbazole and 3,6-dinitrocarbazole in acetonitrile was studied by using spectroscopic, luminescence and photoacoustic techniques. Absorption spectra and triplet state transient spectra were recorded and the φ{symbol}T and...

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Autores principales: Bonesi, S.M., Mesaros, M., Cabrerizo, F.M., Ponce, M.A., Bilmes, G.M., Erra-Balsells, R.
Formato: JOUR
Materias:
Absorption spectra
Acetonitrile
Functional groups
Phosphorescence
Photoacoustic effect
Nitro groups
Phosphorescence emission
Photophysics
Triplet state transient spectra
Crystalline materials
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00092614_v446_n1-3_p49_Bonesi
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_00092614_v446_n1-3_p49_Bonesi2023-10-03T14:08:27Z The photophysics of nitrocarbazoles used as UV-MALDI matrices: Comparative spectroscopic and optoacoustic studies of mononitro- and dinitrocarbazoles Bonesi, S.M. Mesaros, M. Cabrerizo, F.M. Ponce, M.A. Bilmes, G.M. Erra-Balsells, R. Absorption spectra Acetonitrile Functional groups Phosphorescence Photoacoustic effect Nitro groups Phosphorescence emission Photophysics Triplet state transient spectra Crystalline materials The photophysical behaviour of 1-nitrocarbazole, 3-nitrocarbazole, 1,6-dinitrocarbazole and 3,6-dinitrocarbazole in acetonitrile was studied by using spectroscopic, luminescence and photoacoustic techniques. Absorption spectra and triplet state transient spectra were recorded and the φ{symbol}T and τT values were determined. Phosphorescence emission at 77 K and the dynamic properties in terms of φ{symbol}p, kp o and knr for the mono and dinitrocarbazoles were derived. Results are discussed in terms of the optimised structure of 1-nitrocarbazole, 3-nitrocarbazole, 1,6-dinitrocarbazole and 3,6-dinitrocarbazole and are compared with that of carbazole. The nitro group attached to the carbazole moiety induces important changes in the photophysical behaviour of these compounds. © 2007 Elsevier B.V. All rights reserved. Fil:Bonesi, S.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mesaros, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ponce, M.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bilmes, G.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Erra-Balsells, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00092614_v446_n1-3_p49_Bonesi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Absorption spectra
Acetonitrile
Functional groups
Phosphorescence
Photoacoustic effect
Nitro groups
Phosphorescence emission
Photophysics
Triplet state transient spectra
Crystalline materials
spellingShingle Absorption spectra
Acetonitrile
Functional groups
Phosphorescence
Photoacoustic effect
Nitro groups
Phosphorescence emission
Photophysics
Triplet state transient spectra
Crystalline materials
Bonesi, S.M.
Mesaros, M.
Cabrerizo, F.M.
Ponce, M.A.
Bilmes, G.M.
Erra-Balsells, R.
The photophysics of nitrocarbazoles used as UV-MALDI matrices: Comparative spectroscopic and optoacoustic studies of mononitro- and dinitrocarbazoles
topic_facet Absorption spectra
Acetonitrile
Functional groups
Phosphorescence
Photoacoustic effect
Nitro groups
Phosphorescence emission
Photophysics
Triplet state transient spectra
Crystalline materials
description The photophysical behaviour of 1-nitrocarbazole, 3-nitrocarbazole, 1,6-dinitrocarbazole and 3,6-dinitrocarbazole in acetonitrile was studied by using spectroscopic, luminescence and photoacoustic techniques. Absorption spectra and triplet state transient spectra were recorded and the φ{symbol}T and τT values were determined. Phosphorescence emission at 77 K and the dynamic properties in terms of φ{symbol}p, kp o and knr for the mono and dinitrocarbazoles were derived. Results are discussed in terms of the optimised structure of 1-nitrocarbazole, 3-nitrocarbazole, 1,6-dinitrocarbazole and 3,6-dinitrocarbazole and are compared with that of carbazole. The nitro group attached to the carbazole moiety induces important changes in the photophysical behaviour of these compounds. © 2007 Elsevier B.V. All rights reserved.
format JOUR
author Bonesi, S.M.
Mesaros, M.
Cabrerizo, F.M.
Ponce, M.A.
Bilmes, G.M.
Erra-Balsells, R.
author_facet Bonesi, S.M.
Mesaros, M.
Cabrerizo, F.M.
Ponce, M.A.
Bilmes, G.M.
Erra-Balsells, R.
author_sort Bonesi, S.M.
title The photophysics of nitrocarbazoles used as UV-MALDI matrices: Comparative spectroscopic and optoacoustic studies of mononitro- and dinitrocarbazoles
title_short The photophysics of nitrocarbazoles used as UV-MALDI matrices: Comparative spectroscopic and optoacoustic studies of mononitro- and dinitrocarbazoles
title_full The photophysics of nitrocarbazoles used as UV-MALDI matrices: Comparative spectroscopic and optoacoustic studies of mononitro- and dinitrocarbazoles
title_fullStr The photophysics of nitrocarbazoles used as UV-MALDI matrices: Comparative spectroscopic and optoacoustic studies of mononitro- and dinitrocarbazoles
title_full_unstemmed The photophysics of nitrocarbazoles used as UV-MALDI matrices: Comparative spectroscopic and optoacoustic studies of mononitro- and dinitrocarbazoles
title_sort photophysics of nitrocarbazoles used as uv-maldi matrices: comparative spectroscopic and optoacoustic studies of mononitro- and dinitrocarbazoles
url http://hdl.handle.net/20.500.12110/paper_00092614_v446_n1-3_p49_Bonesi
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