Abstract
The quenching properties of a series of oligodeoxyribosides bearing fluorophore ‘bases’ is described. Sequences of adjacent, π-stacked pyrenes exhibit stronger electronic interactions visible in both absorbance and emission spectra than pyrenes that are insulated by intervening adenines. Quenching by N, N′-dimethyl-4,4′-bipyridinium dichloride is efficient for excimer-and exciplex-forming oligomers, with Stern-Volmer constants comparable to conjugated polymer “superquenching” schemes.
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