Summary
From the theoretical analysis of our experimental work we can conclude hat the phenomenon of the energy migration, between the molecules of an aromatic compound, seems to take place in those compounds which show intense peaks in their absorption spectra. We believe that the excitation energy is transferred between the vibrational excitation levels of different molecules of the same kind without photon interchange, by a mechanism of excitonic type (1) (vibronic excitons), before the vibrational relaxation time under certain conditions which are stated below.
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Philippetis, A.L., Poulopoulos, P.N. Energy migration between the molecules of an aromatic compound at high concentration in liquid and solid solutions. Lett. Nuovo Cimento 40, 457–460 (1984). https://doi.org/10.1007/BF02748415
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DOI: https://doi.org/10.1007/BF02748415