Abstract
The vibrational structure of the fluorescence spectrum and the structure of a dinaphthylethylene molecule in an excited state are calculated in the first and second approximations of the parametric method employed in the theory of vibronic spectra. The calculated spectra are in quantitative agreement with experimental data. The role of the angular parameters of the parametric method in the quantitative prediction of the vibrational structure of the fluorescence spectrum and changes observed in the geometry of the dinaphthylethylene molecule under excitation is determined. It is demonstrated that the polyene and acene parameters of the parametric method possess a high degree of transferability and that the models obtained are quite adequate to the real structures of the molecules under investigation. The proposed approach permits qualitative predictions and quantitative predictive calculations of the spectra of the studied molecules, as well as the spectral characteristics necessary for simulation of photochemical molecular transformations.
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Original Russian Text © V.I. Baranov, A.N. Solov’ev, 2007, published in Optika i Spektroskopiya, 2007, Vol. 102, No. 4, pp. 541–547.
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Baranov, V.I., Solov’ev, A.N. Modeling of the vibrational structure of the vibronic spectrum and an excited state of the dinaphthylethylene molecule. Opt. Spectrosc. 102, 488–494 (2007). https://doi.org/10.1134/S0030400X07040029
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DOI: https://doi.org/10.1134/S0030400X07040029