This work was made possible through the support of the Laboratory for Molecular Sciences and the NSF. M.A.O. and H.-C.B. are grateful to NSERC and the Wenner-Gren Foundation, respectively, for postdoctoral fellowships.
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Communication
Ultrafast Dynamics in DNA-Mediated Electron Transfer: Base Gating and the Role of Temperature†
Article first published online: 8 DEC 2003
DOI: 10.1002/anie.200352831
Copyright © 2003 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
O'Neill, M. A., Becker, H.-C., Wan, C., Barton, J. K. and Zewail, A. H. (2003), Ultrafast Dynamics in DNA-Mediated Electron Transfer: Base Gating and the Role of Temperature. Angew. Chem. Int. Ed., 42: 5896–5900. doi: 10.1002/anie.200352831
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Publication History
- Issue published online: 8 DEC 2003
- Article first published online: 8 DEC 2003
- Manuscript Received: 9 SEP 2003
- Abstract
- Article
- References
- Cited By
Keywords:
- DNA dynamics;
- electron transfer;
- femtochemistry;
- intercalations;
- purines
The ultrafast dynamics of electron transfer (ET) between bases in DNA have been determined to elucidate the critical role of base-pair gating on the timescale of the electron transport and the temperature dependence of the rates. ET occurs only through DNA duplexes that adopt a specific, well-coupled alignment of bases (ET-active; see picture). Descriptions of ET dynamics must include fluctuations of DNA bases.