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| 1.
論文 |
論文
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Takezawa, S. ; Iida, Y.
概要:
application/pdf<br />Departmental Bulletin Paper<br />When a localized perturbation takes place in the Rydberg series, t
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he quantum defect δn of the series shows a value deviated from the normal one of the series. In the homogenous perturbation between Rydberg states (II^-) the electro-vibronic levels show an appearance without any perturbations, even if it exists, because of having the similar rotational constants. The plots of the rotaional levels T(υ, J) against J(J+1) are not crossed, but parallel. The energy shifts are similar in the each levels. In such cases we, therefore, have to detect the existence of localized perturbation from the abnormal quantum defects in the series or deviated rotational constants in the Rydberg bands. Thus studies on the quantum defect is quite important as an evidence of a localized perturbation. In this work we investigate relation between energy spacing, internuclear distance and quantum defect, by using a typical example of the interaction in the 5pπ^1II^-_u (υ=2) and 7pπ^1II^-_u (υ=1) in H_2. Also we discuss an autoionization effect of perturbed rotational levels in the autoionization area.
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| 2.
論文 |
論文
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Takezawa, S. ; Iida, Y.
概要:
application/pdf<br />Departmental Bulletin Paper<br />Well known R-K-R (Rydberg, Klein, Ree) potential curves of selected states, by using experimentally obtained molecular constants, are constructed for investigations of the
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predissociation and perturbation of H_2. These phenomena are observed in the wave length region, in which the absorption spectrum shows ill-fated appearance and has been not always analyzed completely. Since the region corresponds to the first ionization potential (124 418.2cm^<-1>), we have to take account of autoionization. Closeness of electronic potentials, especially in their left side, as well as narrow energy spacings between interacting energy levels are highly important to understand such phenomena. We construct R-K-R potentials by using previously obtained data and discuss on the perturbation or predissociation which are taking place in the electronic states near the first ionization of H_2. We calculated internuclear distances, r_<max> and r_<min>, namely turning points of potential curves by using our R-K-R computer program.
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