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  • Title: Dynamics of ultrafast singlet and triplet charge transfer in anthraquinone-DNA conjugates.
    Author: Lewis FD, Thazhathveetil AK, Zeidan TA, Vura-Weis J, Wasielewski MR.
    Journal: J Am Chem Soc; 2010 Jan 20; 132(2):444-5. PubMed ID: 20028130.
    Abstract:
    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.
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