A millimeter/sub-millimeter-wave spectroscopic study of the FeCl radical (XΔi) |
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Authors: | M D Allen B Z Li L M Ziurys |
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Institution: | Department of Chemistry, Arizona State University, Tempe, AZ 85287-1604, USA |
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Abstract: | Pure rotational spectroscopy of the FeCl radical (X6Δi) has been carried out using millimeter/sub-millimeter direct absorption techniques. The species was created by the reaction of chlorine with iron vapor. All six spin-orbit components were observed in the majority of the twenty-one rotational transition recorded. Chlorine hyperfine structure was resolved in the Ω = 9/2 and 7/2 components, and lambda-type doubling observed in the Ω = 3/21/2, and −1/2 ladders. The data were analyzed with a 6Δ Hamiltonian, and rotational, fine structure, lambda-doubling, and hyperfine parameters determined. The hyperfine and lambda-doubling interactions in FeCl appear to be different from those in the FeF radical. |
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