Long-lived excited states in i-motif DNA studied by picosecond time-resolved IR spectroscopy†
Páraic M. Keane,Michal Wojdyla,Gerard W. Doorley,John M. Kelly,Anthony W. Parker,Ian P. Clark,Gregory M. Greetham,Michael Towrie,Luís M. Magno,Susan J. Quinn
Abstract
The transient IR absorption spectrum for UV-excited i-motif DNA is reported for the first time and found to possess complex dynamics pointing to multiple decay processes, including possible charge transfer between packed hemi-protonated C bases.
