Abstract
The anomalous photophysical desactivation behaviour ofp-dimethylaminobenzonitrile and relatedN,N-dialkylanilines depends on specific solvents-solute interactions. The application of multiparameter models based onKamlet andTaft to the solvatochromism of absorption and fluorescence and photophysical parameters demonstrates different relaxation mechanisms in aprotic and protic solvents, respectively. The main process is determined by solvent viscosity in protic solvents only.
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Kupfer, M., Abraham, W. Multiparametermodelle für die Interpretation von Lösungsmitteleinflüssen auf spektroskopische und photophysikalische Parameter, 2. Mitt.. Monatsh Chem 114, 513–524 (1983). https://doi.org/10.1007/BF00798605
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DOI: https://doi.org/10.1007/BF00798605