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Steady-state Stern-Volmer plot for the emission quenching of excited state Mes-Acr+BF4− (λex = 450 nm, λmax = 534 nm) by two phenol monomers and 4,4’-di-tert-butylbiphenyl. I0 and I are the luminescence intensities in the absence and presence of the specific quencher at variable concentrations, respectively.
