On the Determination of a Heterogeneous vs a Homogeneous Perturbation in the Spectrum of a Diatomic Molecule: The K1Σ+, v = 0 state of 13C18O

✍ Scribed by K.S.E. Eikema; W. Hogervorst; W. Ubachs

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 424 KB
• Volume: 163
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.1994.1003

✦ Synopsis

A spectrum of the (K^{1} \Sigma^{+}, v=0) state of ({ }^{13} \mathrm{C}^{18} \mathrm{O}), excited by XUV-laser radiation, has been recorded. It turns out to be an exemplary case of a strongly perturbed rotational manifold without direct spectroscopic information on the perturber state. The question of the nature of a perturbation, i.e., whether it is heterogeneous or homogeneous, is addressed. From a numerical analysis it follows that the perturbation of the (K^{\prime} \Sigma^{+}, v=0) state is heterogeneous and that the perturber may be tentatively identified as the (E^{1} \Pi, v=5) state. Precise values for the molecular constants are determined for both the (K^{l} \Sigma^{+}, v=0) and the perturber state. 1994 Academic Press. Inc.