Explicit consideration of mode mixing (Duschinsky effect) is necessary to interpret the vibronic intensities in the oneand two-photon spectra of the electronically forbidden 'Bzu e 'Al8 transition in benzene. Good agreement with experiment is obtained by using a set of excited state normal coordinat
Vibronic coupling in electronic transitions with significant Duschinsky effect
β Scribed by Andrea Peluso; Fabrizio Santoro; Giuseppe Del Re
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 231 KB
- Volume
- 63
- Category
- Article
- ISSN
- 0020-7608
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β¦ Synopsis
Conceptual and mathematical difficulties arise in the study of transitions between vibronic states belonging to crossing BornαOppenheimer hypersurfaces with significantly different positions and shapes of the minimum-energy nuclear configurations Ε½ . Duschinsky effect . This article presents an analytic procedure for the evaluation of the pertinent coupling integrals, adopting a normal coordinate reference system for the internal nuclear motion and harmonic approximation. The Duschinsky effect is properly considered. The procedure was applied to the dynamics of electron transfer in neutral mixed valence monoradicals, using the diabatic representation.
π SIMILAR VOLUMES
The effect of strong Duschinsky type mixing of two normal coordinates Q1 and Q2 on the intensity of transitions in non-totally symmetric vibrations in electronic spectra is examined. Using a Fermi resonance type theory, expressions are derived for the intensity of transitions such as 1(1)02(0)1 and