001     11461
005     20210129210542.0
024 7 _ |2 pmid
|a pmid:20513159
024 7 _ |2 DOI
|a 10.1021/ja1029705
024 7 _ |2 WOS
|a WOS:000278905700016
024 7 _ |a altmetric:1734545
|2 altmetric
037 _ _ |a PreJuSER-11461
041 _ _ |a eng
082 _ _ |a 540
084 _ _ |2 WoS
|a Chemistry, Multidisciplinary
100 1 _ |0 P:(DE-HGF)0
|a Nachtigallova, D.
|b 0
245 _ _ |a Does Stacking Restrain the Photodynamics of Individual Nucleobases?
260 _ _ |a Washington, DC
|b American Chemical Society
|c 2010
300 _ _ |a 8261 - 8263
336 7 _ |a Journal Article
|0 PUB:(DE-HGF)16
|2 PUB:(DE-HGF)
336 7 _ |a Output Types/Journal article
|2 DataCite
336 7 _ |a Journal Article
|0 0
|2 EndNote
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a JOURNAL_ARTICLE
|2 ORCID
336 7 _ |a article
|2 DRIVER
440 _ 0 |0 8502
|a Journal of the American Chemical Society
|v 132
|x 0002-7863
|y 24
500 _ _ |a This work has been supported by grants from the Ministry of Education of the Czech Republic (Center for Biomolecules and Complex Molecular Systems, LC512) and by the Austrian Science Fund within the framework of the Special Research Program F16 (Advanced Light Sources) and Project P18411-N19. It was part of research project Z40550506. Support from the Praemium Academiae of the AS CR, awarded to P.H. in 2007, is acknowledged. T.Z. acknowledges a grant of the Grant Agency of the Czech Republic 203/09/H046 and grant of the Ministry of Education of the Czech Republic MSM6198959216.
520 _ _ |a Nonadiabatic photodynamical simulations of 4-aminopyrimidine (4-APy) used as a model for adenine were performed by embedding it between two stacking methyl-guanine (mGua) molecules to determine the effect of spatial restrictions on the ultrafast photodeactivation mechanism of this nucleobase. A hybrid multiconfigurational ab initio/molecular mechanical approach in combination with surface hopping was used. During the dynamics the formation of a significant fraction of intrastrand hydrogen bonding from 4-APy to mGua above and below is observed. These findings show that this type of hydrogen bond may play an important role for the photodynamics within one DNA strand and that it should be of interest even in irregular segments of double stranded nucleic acids structures. The relaxation mechanism of internal conversion to the ground state is dominated by ring puckering, and an overall elongation of the lifetime of the embedded system by approximately 20% as compared to the isolated 4-APy is computed.
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|a 411 - Computational Science and Mathematical Methods (POF2-411)
|c POF2-411
|f POF II
|x 1
588 _ _ |a Dataset connected to Web of Science, Pubmed
650 _ 2 |2 MeSH
|a DNA: chemistry
650 _ 2 |2 MeSH
|a Hydrogen Bonding
650 _ 2 |2 MeSH
|a Light
650 _ 2 |2 MeSH
|a Models, Molecular
650 _ 2 |2 MeSH
|a Nucleic Acid Conformation: radiation effects
650 _ 2 |2 MeSH
|a Pyrimidines: chemistry
650 _ 7 |0 0
|2 NLM Chemicals
|a Pyrimidines
650 _ 7 |0 591-54-8
|2 NLM Chemicals
|a 4-aminopyrimidine
650 _ 7 |0 9007-49-2
|2 NLM Chemicals
|a DNA
650 _ 7 |2 WoSType
|a J
700 1 _ |0 P:(DE-HGF)0
|a Zeleny, T.
|b 1
700 1 _ |0 P:(DE-HGF)0
|a Ruckenbauer, M.
|b 2
700 1 _ |0 P:(DE-Juel1)132204
|a Müller, T.
|b 3
|u FZJ
700 1 _ |0 P:(DE-HGF)0
|a Barbatti, M.
|b 4
700 1 _ |0 P:(DE-HGF)0
|a Hobza, P.
|b 5
700 1 _ |0 P:(DE-HGF)0
|a Lischka, H.
|b 6
773 _ _ |0 PERI:(DE-600)1472210-0
|a 10.1021/ja1029705
|g Vol. 132, p. 8261 - 8263
|p 8261 - 8263
|q 132<8261 - 8263
|t Journal of the American Chemical Society
|v 132
|x 0002-7863
|y 2010
856 7 _ |u http://dx.doi.org/10.1021/ja1029705
909 C O |o oai:juser.fz-juelich.de:11461
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