Excited-State Two-Proton Tautomerism in Hydrogen-Bonded N-Heterocyclic Base Pairs

The optical absorption and luminescence spectra of 7-azaindole and its doubly hydrogen-bonded dimer were investigated as a model for the study of electronic interactions in DNA base pairs. It is demonstrated that a biprotonic phototautomerism occurs in the dimer and in suitable ethanol solvates in f...

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Veröffentlicht in:	Proceedings of the National Academy of Sciences - PNAS 1969-06, Vol.63 (2), p.253-260
Hauptverfasser:	Al Taylor, Carl, El-Bayoumi, M. Ashraf, Kasha, Michael
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption spectra Dimers DNA Ethanol Excimers Excitons Fluorescence Heterocyclic Compounds Hydrogen Luminescence Models, Chemical Monomers Physical Sciences: Chemistry Protons Solvents Spectrum Analysis Ultraviolet Rays
Online-Zugang:	Volltext
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