CONICET | Buscador de Institutos y Recursos Humanos

Trabajo aceptado 6 de noviembre de 2006. Disponible on line 10 de noviembre de 2006, http://dx.doi.org/10.1016/j.jphotochem.2006.11.002 Abstract The effect of cyclodextrins (CDs) in the excited state proton transfer process of indole compounds has been studied by fluorescence quenching, in acid and alkaline media. The quenching efficiency decreases in the presence of CDs in both media indicating a remarkable protection mediated by CD against external quenchers. An interesting non-linear behaviour for the Stern-Volmer plots was observed in basic media. This was interpreted as total inhibition of the quenching process by ionized cyclodextrin. Induced circular dichroism has been used to determine the indole position into the cyclodextrin cavities. Abstract The effect of cyclodextrins (CDs) in the excited state proton transfer process of indole compounds has been studied by fluorescence quenching, in acid and alkaline media. The quenching efficiency decreases in the presence of CDs in both media indicating a remarkable protection mediated by CD against external quenchers. An interesting non-linear behaviour for the Stern-Volmer plots was observed in basic media. This was interpreted as total inhibition of the quenching process by ionized cyclodextrin. Induced circular dichroism has been used to determine the indole position into the cyclodextrin cavities. Abstract The effect of cyclodextrins (CDs) in the excited state proton transfer process of indole compounds has been studied by fluorescence quenching, in acid and alkaline media. The quenching efficiency decreases in the presence of CDs in both media indicating a remarkable protection mediated by CD against external quenchers. An interesting non-linear behaviour for the Stern-Volmer plots was observed in basic media. This was interpreted as total inhibition of the quenching process by ionized cyclodextrin. Induced circular dichroism has been used to determine the indole position into the cyclodextrin cavities. Abstract The effect of cyclodextrins (CDs) in the excited state proton transfer process of indole compounds has been studied by fluorescence quenching, in acid and alkaline media. The quenching efficiency decreases in the presence of CDs in both media indicating a remarkable protection mediated by CD against external quenchers. An interesting non-linear behaviour for the Stern-Volmer plots was observed in basic media. This was interpreted as total inhibition of the quenching process by ionized cyclodextrin. Induced circular dichroism has been used to determine the indole position into the cyclodextrin cavities. Abstract The effect of cyclodextrins (CDs) in the excited state proton transfer process of indole compounds has been studied by fluorescence quenching, in acid and alkaline media. The quenching efficiency decreases in the presence of CDs in both media indicating a remarkable protection mediated by CD against external quenchers. An interesting non-linear behaviour for the Stern-Volmer plots was observed in basic media. This was interpreted as total inhibition of the quenching process by ionized cyclodextrin. Induced circular dichroism has been used to determine the indole position into the cyclodextrin cavities. Abstract The effect of cyclodextrins (CDs) in the excited state proton transfer process of indole compounds has been studied by fluorescence quenching, in acid and alkaline media. The quenching efficiency decreases in the presence of CDs in both media indicating a remarkable protection mediated by CD against external quenchers. An interesting non-linear behaviour for the Stern-Volmer plots was observed in basic media. This was interpreted as total inhibition of the quenching process by ionized cyclodextrin. Induced circular dichroism has been used to determine the indole position into the cyclodextrin cavities.