Abstract
Abstract We have investigated the time-dependences of spectra and the specific features of luminescence anisotropy of molecules of 3-amino-N-methylphthalimide in glycerol conditioned by the dynamic inhomogeneous configurational broadening of electronic spectra. It has been found that the process of solvate molecule configurational relaxation is accompanied by acceleration of activator molecule rotation. The magnitude of the effect depends on the released store of energy of intermolecular interactions during relaxation. The spectral-kinetic properties of a polar solution have been simulated on the basis of a continual model taking into account the inhomogeneous configurational broadening of electronic spectra. It has been found that the experimental spectrochronogram is well described by this model if we associate changes in the spontaneous luminescence spectra halfwidth with the evolution of the function of solvates 0-0 transition frequency distribution and give the law of relaxation as the sum of two components.
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