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

Cabanzo Hernández, Rafael; David Gara, Pedro Maximiliano; Molina Velasco, Daniel; Erra Balsells, Rosa; Bilmes, Gabriel Mario

Argentina | info:eu-repo/semantics/article

Fecha

2013-08-06

Registro en:

Cabanzo Hernández, Rafael; David Gara, Pedro Maximiliano; Molina Velasco, Daniel; Erra Balsells, Rosa; Bilmes, Gabriel Mario; Photophysical behavior of new acridine(1,8)dione dyes; Royal Society of Chemistry; Photochemical and Photobiological Sciences; 12; 6-8-2013; 1968-1975

1474-905X

http://hdl.handle.net/11336/2118

Autor

Cabanzo Hernández, Rafael

David Gara, Pedro Maximiliano

Molina Velasco, Daniel

Erra Balsells, Rosa

Bilmes, Gabriel Mario

Institución

Consejo Nacional de Investigaciones Científicas y Tecnológicas (Argentina)

Resumen

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

Materias

Photochemistry

Dyes

Quinones

Acridines

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