Abstract
Fluorescent properties of the P4CF2 and P4CF3 molecules are studied by quantum-chemical methods taking into account the interaction with a polar solvent. It is shown that the molecules exhibit two minima of the potential where hydrogen bonding with a proton-donor solvent can occur. A mechanism responsible for two-band anomalous fluorescence in para- and orthoposions is disccussed. The mechanism was earlier described in [2]. The effect of fluorine substitution in para- and orthopositions is also considered. It is found that strong hydrogen bonding takes place to give a molecule — polar solvent complex where two radiative states of different origin can occur.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 10, pp. 19–22, October, 2004.
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Artyukhov, V.Y., Smirnov, O.V. Dual fluorescence in donor-acceptor molecules and the effect of fluorination. Russ Phys J 47, 983–987 (2004). https://doi.org/10.1007/s11182-005-0011-7
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DOI: https://doi.org/10.1007/s11182-005-0011-7