Relaxation, exciton intramolecular electronic

The photoinduced creation of an ion or exciton in condensed molecular media causes greater relaxation than in isolated molecules because the induced charge redistribution generates electronic and atomic relaxation in the other constitutents of the medium as well as in the excited molecule itself. The associated intermolecular contributions to the relaxation energy are comparable in magnitude to the intramolecular ones from the molecule itself, i.e., E (inter)=l-2eV, E (inter)=0.leV (4, 6, 10). 

Since the lowest energy interchain excitons have even electron-hole parity this implies that H connects them to Sx and Tx, and not to the intramolecular S ct and Moreover, since the interchain exciton will have relaxed to its lowest... 

The analysis of intramolecular UV absorption using the relaxation-localization model is completely analogous to that of valence-electron photoemission. The major change is that charge densities appropriate for molecular excitons rather than molecular ions 2 27 model expressions for the... 

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