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Trends in Physical Chemistry   Volumes    Volume 22 
On the photophysics of polyene compounds
Javier Catalán
Pages: 17 - 23
Number of pages: 7
Trends in Physical Chemistry
Volume 22 

Copyright © 2022 Research Trends. All rights reserved

This review shows the photophysical inconsistencies of the Hudson and Kohler model on polyene compounds. Let us remember that this model states the existence of an underlying phantom-excited singlet state, from which the fluorescence of these compounds is generated, but which is not directly monophotonically excitable from the ground electronic state of the polyene compound. In this review it is shown that if the molecular structures of polyenic compounds involved in its first absorption band and in its emission band were coplanar, the two striking anomalies on the spectroscopic behaviour of these compounds would disappear. Thus, its absorption spectrum and its emission spectrum would not show a significant Stokes shift and the corresponding solvatochromic behaviour of its absorption and its emission would be similar.
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