Intermolecular orientational "upward" relaxation in viscous solutions of organic compounds
Nemkovich N.A. , Matseiko V.I. , Rubinov A.N., Tomin V.I.
A short-wave time shift of the fluorescence spectra and a decrease of the afterglow in the long-wave region of the fluorescence spectrum has been observed as a result of anti-Stokes-line excitation in viscous solutions of 3-amino-N-methyl phthalimide and 4-amino-N-methyl phthalimide.