Acid-base equilibria studies and photophysics in AOT w/o microemulsions of (bi)functionalized benzo[a]phenoxazinium chlorides

It is reported the fluorescence and absorption spectra of pure cationic and neutral forms of benzo[a]phenoxazine derivatives containing different functional groups at 5- and 9-positions obtained by shifting the acid-base equilibria with the addition of a strong acid or base. The photophysical behavi...

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Detalhes bibliográficos
Autor principal: Raju, B. Rama (author)
Outros Autores: Costa, A. L. S. (author), Coutinho, Paulo J. G. (author), Gonçalves, M. Sameiro T. (author)
Formato: conferencePaper
Idioma:eng
Publicado em: 2011
Assuntos:
Texto completo:http://hdl.handle.net/1822/15669
País:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/15669
Descrição
Resumo:It is reported the fluorescence and absorption spectra of pure cationic and neutral forms of benzo[a]phenoxazine derivatives containing different functional groups at 5- and 9-positions obtained by shifting the acid-base equilibria with the addition of a strong acid or base. The photophysical behavior of these compounds in AOT/cyclohexane/water w/o microemulsions as a function of water content is also investigated.