Matches in SemOpenAlex for { <https://semopenalex.org/work/W2072589038> ?p ?o ?g. }
- W2072589038 abstract "Abstract Molecular vibration and rotation play a significant role in the intramolecular photoexcitation dynamics of the so-called intermediate-case molecule, and the fluorescence intensity, decay and polarization of s-triazine vapor are shown to depend on the excited rovibronic level of the S1 state. Fluorescence characteristics are interpreted by assuming three zero-order states: (1) a zero-order singlet state that carries the absorption intensity and emits fluorescence with sharp structure; (2) zero-order singlet states that do not carry the absorption intensity but emit broad fluorescence; and (3) zero-order triplet states. The interaction among these states depends not only on the vibrational level but also on the rotational level excited. It is suggested that the number of triplet states coupled to the singlet state increases with increasing excess vibrational energy. It is also suggested that K-scrambling occurs both in the triplet manifold following intersystem crossing (ISC) and in the singlet manifold following intramolecular vibrational energy redistribution (IVR). The fluorescence intensity and decay of s-triazine vapor are significantly influenced by a magnetic field, and the field effects are interpreted in terms of the spin decoupling in the triplet manifold following ISC; the role of external magnetic fields is to mix the spin sublevels of different rovibronic levels coupled to the excited singlet state. Magnetic depolarization of fluorescence also occurs because of the efficient interaction between the excited singlet state and the triplet state." @default.
- W2072589038 created "2016-06-24" @default.
- W2072589038 creator A5014370421 @default.
- W2072589038 date "2000-12-01" @default.
- W2072589038 modified "2023-09-30" @default.
- W2072589038 title "Intramolecular photoexcitation dynamics and magnetic field effects in an intermediate-case molecule" @default.
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- W2072589038 doi "https://doi.org/10.1016/s1389-5567(00)00012-5" @default.
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