The rotational spectrum of the NiI radical in the X 2Delta(5/2) and A 2Pi(3/2) states |
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Authors: | Miyazawa Toru Okabayashi Emi Y Koto Fumi Tanimoto Mitsutoshi Okabayashi Toshiaki |
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Institution: | Department of Chemistry, Faculty of Science, Shizuoka University, 836 Oya, Shizuoka 422-8529, Japan. |
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Abstract: | The millimeter- and submillimeter-wave spectra of the NiI radical in the X (2)Delta(5/2) and A (2)Pi(3/2) states were observed by a source-modulated microwave spectrometer. The NiI radical was generated by a dc glow discharge in the mixture of CH(3)I vapor and Ar gas through the sputtering reaction with a Ni cathode. Observed transition frequencies for each electronic state were independently analyzed using a polynomial energy expression based on Hund's case (c) approximation. The deperturbed rotational constants were also estimated by the perturbation analysis including interaction terms between the ground state and the lowest excited state. |
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