The laser magnetic resonance spectrum of the NCO radical at 5.2 μm |
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Authors: | Clive E Barnes John M Brown Alan D Fackerell Trevor J Sears |
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Institution: | Department of Chemistry, Southampton University, Southampton S09 5NH, England;Herzberg Institute of Astrophysics, National Research Council, Ottawa K1A 0R6, Canada |
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Abstract: | Lines in the ν3 (“antisymmetric” stretch) fundamental of the NCO radical in the state were studied by CO laser magnetic resonance. The observations were assigned to P and R lines in the vibration-rotation band and lead to a precise determination of the vibrational interval and the anharmonic correction to the rotational constant: ν3 = 1920.60645(19) cm?1, α3 = 0.003338(21) cm?1. A single transition in the hot band (011)-(010), was detected. This observation is used to determine the origin of the hot band as 1907.11892(20) cm?1, i.e., the anharmonicity parameter x23 = ?13.48753(28) cm?1. |
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