Issue 7, 2003
From the journal:

Photochemical & Photobiological Sciences

The photophysics of nitrocarbazoles studied by using spectroscopic, photoacoustic and luminescence techniques†

Mariana Mesaros,a   Sergio M. Bonesi,b   Maria A. Ponce,b   Rosa Erra-Balsells*b  and  Gabriel M. Bilmes*c  

* Corresponding authors

a Centro de Investigaciones Opticas (CONICET-CIC), Casilla de Correo 124, (1900) La Plata, Argentina

b CIHIDECAR-CONICET, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón II,3 Ciudad Universitaria, (1428) Buenos Aires, Argentina

c Centro de Investigaciones Opticas (CONICET-CIC) y Universidad Nacional de La Plata, Casilla de Correo 124, (1900) La Plata, Argentina
E-mail: gabrielb@ciop.unlp.edu.ar

Abstract

The photophysical behaviour of 1-nitrocarbazol and 3-nitrocarbazol in different organic solvents has been studied by using spectroscopic, luminescence and photoacoustic techniques. Absorption spectra and triplet state transient spectra were recorded and formation quantum yields and lifetimes determined. Phosphorescence emission at 77 K and laser induced luminescence in acetonitrile solution at 298 K for the nitrocarbazoles were studied. Results are discussed in terms of the optimized structure of 1-nitrocarbazole and 3-nitrocarbazole and compared with that of carbazole. The nitro group attached to the carbazole moiety induces important changes in the photophysical behavior of those compounds.

Graphical abstract: The photophysics of nitrocarbazoles studied by using spectroscopic, photoacoustic and luminescence techniques

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Article information

DOI
https://doi.org/10.1039/B304520J
Article type
Paper
Submitted
24 Apr 2003
Accepted
16 May 2003
First published
12 Jun 2003

Photochem. Photobiol. Sci., 2003,2, 808-816

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The photophysics of nitrocarbazoles studied by using spectroscopic, photoacoustic and luminescence techniques

M. Mesaros, S. M. Bonesi, M. A. Ponce, R. Erra-Balsells and G. M. Bilmes, Photochem. Photobiol. Sci., 2003, 2, 808 DOI: 10.1039/B304520J

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