(Chemical Equation Presented) The efficiency of singlet and triplet charge radical ion-pair formation and the dynamics of radical-pair charge recombination in DNA-anthraquinone conjugates have been investigated by means of femtosecond time-resolved transient absorption spectroscopy. Singlet charge separation is more efficient than intersystem crossing, resulting in inefficient formation of the long-lived triplet radical ion pair. Both singlet charge separation and charge recombination are faster when guanine rather than adenine is the neighboring purine base.
|Original language||English (US)|
|Number of pages||2|
|Journal||Journal of the American Chemical Society|
|State||Published - Jan 20 2010|
ASJC Scopus subject areas
- Colloid and Surface Chemistry