INVESTIGADORES
CABRERIZO franco Martin
artículos
Título:
The photophysics of nitrocarbazoles used as UV-MALDI matrices: Comparative spectroscopic and optoacoustic studies of mononitro- and dinitrocarbazoles
Autor/es:
SERGIO M. BONESI; MARIANA MESAROS; FRANCO M. CABRERIZO; MARÍA A. PONCE; GABRIEL M. BILMES; ROSA ERRA-BALSELLS*
Revista:
CHEMICAL PHYSICS LETTERS
Referencias:
Año: 2007 vol. 446 p. 49 - 55
ISSN:
0009-2614
Resumen:
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 FT and tT values were determined. Phosphorescence emission at 77 K and the dynamic properties in terms of Fp, kp 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.