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DC Field | Value | Language |
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dc.citation.endPage | 1768 | - |
dc.citation.number | 5702 | - |
dc.citation.startPage | 1765 | - |
dc.citation.title | SCIENCE | - |
dc.citation.volume | 306 | - |
dc.contributor.author | Schultz, Thomas | - |
dc.contributor.author | Samoylova, E. | - |
dc.contributor.author | Radloff, W. | - |
dc.contributor.author | Hertel, I.V. | - |
dc.contributor.author | Sobolewski, A.L. | - |
dc.contributor.author | Domcke, W. | - |
dc.date.accessioned | 2023-12-22T10:40:57Z | - |
dc.date.available | 2023-12-22T10:40:57Z | - |
dc.date.created | 2014-09-19 | - |
dc.date.issued | 2004-12 | - |
dc.description.abstract | We present experimental and theoretical evidence for an excited-state deactivation mechanism specific to hydrogen-bonded aromatic dimers, which may account, in part, for the photostability of the Watson-Crick base pairs in DNA. Femtosecond time-resolved mass spectroscopy of 2-aminopyridine clusters reveals an excited-state lifetime of 65 ± 10 picoseconds for the near-planar hydrogen-bonded dimer, which is significantly shorter than the lifetime of either the monomer or the 3- and 4-membered nonplanar clusters. Ab initio calculations of reaction pathways and potential-energy profiles identify the mechanism of the enhanced excited-state decay of the dimer: Conical intersections connect the locally excited 1ππ* state and the electronic ground state with a 1ππ* charge-transfer state that is strongly stabilized by the transfer of a proton. | - |
dc.identifier.bibliographicCitation | SCIENCE, v.306, no.5702, pp.1765 - 1768 | - |
dc.identifier.doi | 10.1126/science.1104038 | - |
dc.identifier.issn | 0036-8075 | - |
dc.identifier.scopusid | 2-s2.0-10044281511 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/6267 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=10044281511 | - |
dc.identifier.wosid | 000225630800049 | - |
dc.language | 영어 | - |
dc.publisher | AMER ASSOC ADVANCEMENT SCIENCE | - |
dc.title | Efficient deactivation of a model base pair via excited-state hydrogen transfer | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
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