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On the Photochemistry of Purine Nucleobases
Abstract
We present R2PI spectra of a series of purine nucleobases, nucleosides, and related derivatives, including adenine, guanine, guanosine, 2-aminopurine, 2,6-diaminopurine, 9-ethyladenine, and 9-methylguanine. We compare the results with models involving two interacting excited states, which have been proposed to explain the short excited-state lifetime of most nucleobases. The amino group in the 2 position appears to have a strong effect on the excited-state potentials, as does any substitution in the 9 position. This explains the very different fluorescence characteristics of 2-aminopurine, but it raises new questions concerning the short lifetime of guanine in solution.
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Citations
Cited by
Sobolewski, A. L., Domcke, W., Dedonder-Lardeux, C., & Jouvet, C. (2002) · Physical Chemistry Chemical Physics · doi:10.1039/b110941n · Cited by 915
Are the five natural DNA/RNA base monomers a good choice from natural selection?
Serrano-Andrés, L., & Merchán, M. (2009) · Journal of Photochemistry and Photobiology C: Photochemistry Reviews · doi:10.1016/j.jphotochemrev.2008.12.001 · Cited by 305
Adenine and 2-aminopurine: Paradigms of modern theoretical photochemistry
Serrano-Andrés, L., Merchán, M., & Borin, A. C. (2006) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0602991103 · Cited by 291
Life in the light: nucleic acid photoproperties as a legacy of chemical evolution
Beckstead, A. A., Zhang, Y., de Vries, M. S., & Kohler, B. (2016) · Physical Chemistry Chemical Physics · doi:10.1039/c6cp04230a · Cited by 153
Metadata
- Authors
- Nir, E., Kleinermanns, K., Grace, L., & de Vries, M. S.
- Venue
- The Journal of Physical Chemistry A
- Publisher
- American Chemical Society (ACS)
- Published
- 2001-05-01
- Volume
- 105
- Issue
- 21
- Pages
- 5106-5110
- ISSN
- 1089-5639 (ISSN-L)
- 1520-5215
- OpenAlex
- W2134062899
- Cited by
- 172
- References
- 0
- FWCI
- 8.25
- Type
- journal article
- Language
- en
- Open access
- closed
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