PRESSURE EFFECT ON THE RYDBERG-VALENCE INTERACTIONS IN THE ELECTRONIC TRANSITIONS OF NITRIC OXIDE
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Date
1974
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Ohio State University
Abstract
It is well known that the spectrum of the free molecule NO exhibits strong perturbations arising from numerous interactions between valence and Rydberg states. Pressures of Argon up to $\sim$ 30 bar have been applied to a cell containing NO. High resolution spectra have been photographed on the 10.7 meter concave grating spectrograph of the Observatory of Meudon. The reciprocal dispersion is D.78 {\AA}/W and the resolution 0.014 {\AA}. It is observed that the behavior under pressure of the rovibronic structure is very sensitive to the degree of interaction. In particular, interacting bands of either valence of Rydberg type exhibit a J - dependent broadening, thus reflecting the details of configuration interactions in the free molecule.
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Author Institution: Laboratoire des Int\'{e}ractions, Mol\'{e}culaires et des Hautes Pressions C.N.R.S.