Using the method of the density functional theory (DFT/B3LYP/6-31G(d,p)), the vibrational absorption and emission spectra of bifluorene and terfluorene molecules are calculated. A good agreement is obtained between the model and experimental spectra. The vibrational promoting modes forming a vibronic progression in the emission bands are determined.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 11, pp. 90–95, November, 2021.
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Valiev, R.R., Sunchugashev, D.A., Gadirov, R.M. et al. Vibronic Spectra of Bifluorene and Terfluorene. Russ Phys J 64, 2082–2088 (2022). https://doi.org/10.1007/s11182-022-02559-8
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DOI: https://doi.org/10.1007/s11182-022-02559-8