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  • 1
    Electronic Resource
    Electronic Resource
    Predissociation channels of the C 3Πg Rydberg state of O2 (1990)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 93 (1990), S. 2375-2383 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: A theoretical formulation is presented of the predissociation of vibrational levels of the C 3Πg Rydberg state of O2 in terms of an inhomogeneous driven equation which takes account of couplings between the Rydberg state and the lowest two 3Πg valence states and the coupling between the valence states. The branching ratios for decay to the end products O(3P)+O(1D) and O(3P)+O(3P) are obtained and it is found that by a suitable choice of potential energy curves and coupling interactions agreement can be obtained with the experimental data. Utility of the Landau–Zener model is investigated and it is shown to be highly successful in describing the decay paths of the low-lying vibrational levels but it fails for the high-lying levels because of the occurrence of quantal interference between the channels. It is demonstrated that because of flux conservation the total width of the Rydberg vibrational state is independent of the coupling between the valence states.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.459018
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  • 2
    Electronic Resource
    Electronic Resource
    Comment on: "Predissociation of the d 1Πg Rydberg state in O2: Nature of the Rydberg–valence interactions'' (1989)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 90 (1989), S. 7606-7607 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The rotational constants of the lowest vibrational levels of the d 1Πg state of O2 display an anomalous behavior which has been attributed to interactions between the Rydberg and valence 1Πg states. We confirm the suggestion by carrying out a theoretical analysis in which we solved numerically the pair of coupled equations that describe the interacting states.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.456196
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Rotational dependence of the Rydberg–valence interactions in the 1Πg states of molecular oxygen (1991)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 94 (1991), S. 1705-1711 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The two-photon d 1Πg(v')← ←X 3Σ−g(v‘) transition in O2 is studied using resonance enhanced multiphoton ionization (REMPI) spectroscopy and the lowest four vibrational levels of the d 1Πg Rydberg state are characterized. Anomalies in the rotational constants of the Rydberg vibrational levels and perturbations in the REMPI spectra are attributed to the interaction of the Rydberg state with a bound diabatic 1Πg valence state. The rotational dependence of the Rydberg–valence interaction is explored by solving the coupled eigenvalue equations describing the interaction of the two states. The results from solution of the coupled equations as well as observations from photoelectron spectroscopy experiments are used to understand the additional structure seen in the REMPI spectra in the vicinity of the v'=2 Rydberg vibrational level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.459942
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    The C 3Πg Rydberg and 1 3Πg valence states of O2 (1990)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 93 (1990), S. 2370-2374 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Experimental data on the positions and widths of the vibrational energy levels of the C 3Πg Rydberg state of molecular oxygen are interpreted. The energy levels are described as resonances in the elastic scattering of oxygen atoms in the open 1 3Πg valence state caused by a coupling to the closed C 3Πg Rydberg state. The coupled scattering equations are set up with an empirical valence potential energy curve and Rydberg-valence interaction potential and it is shown that the energy level positions and widths can be reproduced by an interaction of 63 meV and a potential energy curve that crosses the Rydberg curve on the attractive part of its outer limb.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.459017
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    Paper (German National Licenses)
    Fulltext
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