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Updated: Jun 28, 2026

In Vitro Chemical Mapping of G-Quadruplex DNA Structures by Bis-3-Chloropiperidines
Published on: May 12, 2023
Excited-state dynamics of isolated DNA bases: a case study of adenine
Christer Z Bisgaard1, Helmut Satzger, Susanne Ullrich
1Steacie Institute for Molecular Sciences, Ottawa, ON, Canada.
Abstract:
We present a summary of recent advances in the understanding of the UV photophysics of the isolated DNA base adenine, emphasizing a discussion of the mechanisms behind the ultrafast relaxation following excitation to the pipi* band. Drawing on our femtosecond time-resolved photoelectron spectroscopy experiments, we discuss differences in the ultrafast relaxation of adenine and 9-methyladenine and consider the relative merits of the various proposed mechanisms.
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