1987
DOI: 10.1146/annurev.pc.38.100187.002245
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Pyrazine: An "Exact" Solution to the Problem of Radiationless Transitions

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Cited by 168 publications
(95 citation statements)
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“…It has served as a prototype for modelling vibronic coupling, and has been used as a test case illustrating the nature of the vibronic interactions (1 5, 16). In the theory of radiationless transitions pyrazine has served as the best known and most studied example of intermediate level structure (18)(19)(20)(21)(22)(23). At energies corresponding to the lowlying vibrational levels of the first excited singlet state the triplet vibrational manifold is believed to be sparse.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…It has served as a prototype for modelling vibronic coupling, and has been used as a test case illustrating the nature of the vibronic interactions (1 5, 16). In the theory of radiationless transitions pyrazine has served as the best known and most studied example of intermediate level structure (18)(19)(20)(21)(22)(23). At energies corresponding to the lowlying vibrational levels of the first excited singlet state the triplet vibrational manifold is believed to be sparse.…”
Section: Introductionmentioning
confidence: 99%
“…This is in part due to the greater experimental difficulties encountered in measuring the singlet-triplet absorption spectrum. However, this factor does not lessen the importance of gaining a full characterization of the lowest triplet state, since in addition to obtaining a more complete picture of pyrazine electronic spectroscopy, the triplet state is believed to play a key role in the scheme of radiationless transitions involving the first excited singlet state (18,19). The singlet-triplet spectrum also allows for testing the applicability of the models of vibronic coupling developed for the singlet state.…”
Section: Introductionmentioning
confidence: 99%
“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14] Frequently, IVR is viewed as an explicitly resolved data and discuss in detail the application of these mechanisms to mode-coupling in the mid-sized molecule pyrizine. 10 From these as well as other experiments 4 -13 , it is clear that rotational angular momentum can play an important role in state mixing, and our understanding of the physical mechanism of rotation dependent vibrational mode-coupling is far from complete.…”
Section: Intramolecular Vibrational Energy Redistribution (Ivr) Has Bmentioning
confidence: 99%
“…High-resolution linewidth and spectral measurements, particularly on benzene (66) and pyrazine (67,68), and "chemical timing" spectral studies on p-difluorobenzene and p-fluorotoluene (22), have contributed greatly to the study of IVR in these large molecules but are not reviewed here. It is important to emphasize that in relatively simple systems, where the eigenstates can be resolved, real-time studies of IVR and spectral analyses are complementary.…”
Section: Studiesmentioning
confidence: 99%