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On the mirror symmetry between the absorption and emission of complex molecules in solution
Author(s) -
Catalán Javier
Publication year - 2020
Publication title -
journal of physical organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 66
eISSN - 1099-1395
pISSN - 0894-3230
DOI - 10.1002/poc.4034
Subject(s) - chemistry , absorption (acoustics) , symmetry (geometry) , molecule , mirror symmetry , chemical physics , optics , quantum mechanics , physics , geometry , mathematics , organic chemistry
The mirror‐symmetry phenomenon between the absorption and the molecular emission discovered by Levshin for molecular systems in solution, known as Levshin's law, is a powerful tool to investigate how different or similar the molecular structure responsible for the emission is with respect to the structure responsible for absorption. The three existing procedures in the literature (Stepanov's, Birks', and Kasha's models) for the evaluation of the behavior of Levshin's law for complex molecules in solution are based on the application of the Einstein coefficients that describe the radiation‐matter interaction in a system formed by two stationary states in the vacuum. None of the three procedures proposed is adequately supported for a molecular system in solution; therefore, a procedure is proposed and spectroscopically regarded as the most appropriate procedure to evaluate the existence or not of mirror‐image symmetry between absorption and emission.