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Fluorescence Solvent Shifts and Singlet Excited State pK's of Indole Derivatives

par Vander Donckt, Emile
Référence Bulletin des Sociétés chimiques belges, 78, 1-2, page (69-75)
Publication Publié, 1969

Article révisé par les pairs

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Résumé :

Fluorescence shifts of indole derivatives in aprotic solvents can be understood on the basis of a general dielectric effect. In protic media as water and ethanol, hydrogen bonds are formed between indole acting as a base and the solvent as an acid. It is shown that the basicity increase in the S1 state of indole derivatives is consistent with this view. Copyright © 1969 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim