| Autor: |
Vieitez, M. O., Ivanov, T. I., de Lange, C. A., Ubachs, W., Heays, A. N., Lewis, B. R., Stark, G. |
| Předmět: |
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| Zdroj: |
Journal of Chemical Physics; 4/7/2008, Vol. 128 Issue 13, p134313, 11p, 7 Charts, 8 Graphs |
| Abstrakt: |
The 3pπu c1Πu-X 1Σg+(2,0) Rydberg and b′ 1Σu+-X 1Σg+(7,0) valence transitions of 14N2, 14N15N, and 15N2 are studied using laser-based 1 extreme ultraviolet (XUV)+1′ UV two-photon-ionization spectroscopy, supplemented by synchrotron-based photoabsorption measurements in the case of 14N2. For each isotopomer, effective rotational interactions between the c(v=2) and b′(v=7) levels are found to cause strong Λ-doubling in c(v=2) and dramatic P/R-branch intensity anomalies in the b′-X(7,0) band due to the effects of quantum interference. Local perturbations in energy and predissociation line width for the c(v=2) Rydberg level are observed and attributed to a spin-orbit interaction with the crossing, short-lived C 3Πu(v=17) valence level. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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