Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 129, Issue 50, Pages 15426-+Publisher
AMER CHEMICAL SOC
DOI: 10.1021/Ja075968a
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- NIGMS NIH HHS [R01 GM067201-03, R01 GM067201-01, R01 GM067201-02, R01 GM067201-04, R01 GM067201, GM067201] Funding Source: Medline
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The quenching properties of a series of oligodeoxyribosides bearing fluorophore bases are described. Sequences of adjacent, pi-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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