期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 55, 期 48, 页码 14993-14996出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201607633
关键词
ab initio multiple spawning (AIMS); excited-state dynamics; molecular dynamics; oxathiirane; photochemistry
资金
- AMOS program within the Chemical Sciences, Geosciences, and Biosciences Division of the Office of Basic Energy Sciences, Office of Science, US Department of Energy
- Belgian American Educational Foundation (B.A.E.F.)
- Wallonie-Bruxelles International (W.B.I)
- Swiss National Science Foundation [P2ELP2_151927]
- Swiss National Science Foundation (SNF) [P2ELP2_151927] Funding Source: Swiss National Science Foundation (SNF)
A fundamental tenet of statistical rate theories (such as transition state theory and RRKM) is the rapidity of vibrational relaxation. Excited-state reactions happen quite quickly (sub-picosecond) and thus can exhibit nonstatistical behavior. However, it is often thought that any diversity of photoproducts results from different conical intersections connecting the excited and ground electronic states. It is also conceivable that the large energy of the photon, which is converted to vibrational energy after electronic transitions could lead to athermal hot ground state reactions and that these might be responsible for the diversity of photoproducts. Here we show that this is the case for sulfines, where a single conical intersection is implicated in the electronic transition but the excited state reaction leads to nine different products within less than a picosecond.
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