Abstract
Quenching of fluorescence of polycyclic aromatic hydrocarbons (PAH), namely, naphthalene, anthracene, 9,10-diphenylanthracene, 9,10-dibromoanthracene by C60 fullerene in ethylbenzene at 293 K was found and investigated. The phenomenon is characterized by abnormally high values of bimolecular rate constants for quenching (k bim = (0.18–6.78)·1012 L mol−1 s−1) determined from the Stern—Volmer dependence of the PAH fluorescence intensity on the C60 concentration and occurs through the inductive-resonance (dominant channel) and exchange-resonance (minor channel) energy transfer from 1PAH* to C60. The overlap integrals of the PAH fluorescence spectra with the C60 absorption spectrum and the critical energy transfer distances were calculated.
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