Molecular Rydberg transitions: Cyanogen chloride |
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Authors: | WS Felps SP McGlynn GL Findley |
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Institution: | Choppin Chemical Laboratories, The Louisiana State University, Baton Rouge, LA 70803 USA |
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Abstract: | The electronic absorption spectrum of cyanogen chloride has been investigated in the range 2200-1250 Å. The first s-Rydberg transitions, and have been assigned, and analyzed to yield exchange and spin-orbit coupling parameters. The relative intensities of these two transitions have been shown to accord with an intermediate coupling situation. The intravalence excitations, leading to 1.3(Σ?, Δ and Σ+) states, have been discussed. It has been shown that one or both of the 1Σ? and 1Δ states have bent geometries and that the 1Σ+ state is located (tentatively) at 79 755 cm?1. Two states have been assigned, one at 56 340 cm?1, the other at 74 450 cm?1. The latter assignment is tentative, being largely based on observed vibronic interferences between the transition and the 74 450 cm?1 transition. A considerable amount of vibrational oscillator strength and quantum defect data is presented. |
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Keywords: | Address reprint requests to SPM Baton Rouge |
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