UV excitation of the DNA single strand (dT)18 leads to electronically excited states that are potential gateways to DNA photolesions. Using time-resolved infrared spectroscopy we characterized a species with a lifetime of ∼100 ps and identified it as a charge separated excited state between two thymine bases.
B. M. Pilles, D. B. Bucher, L. Liu, P. Gilch, W. Zinth and W. J. Schreier, Chem. Commun., 2014, 50, 15623 DOI: 10.1039/C4CC07663J
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