The rotational spectrum of CHF3 in the submillimeter-wave and far-infrared region: observation of the K=3 line splitting
Year: 1994
Authors: Cazzoli G., Cludi L., Cotti G., Dore L., Degli Esposti C., Bellini M., De Natale P.
Autors Affiliation: Dipartimento di Chimica G. Ciamician dell�Universit� di Bologna, Via Selmi 2, 40136 Bologna, Italy and European Laboratory for Nonlinear Spectroscopy (LENS) and Dipartimento di Fisica, Universit� di Firenze, Largo E. Fermi 2, 50125 Firenze, Italy
Abstract: The milimeter-wave, submillimeter-wave. and FIR spectra of the ground state of CHF3 have been observed and analyzed up to J = 78. The resulting spectroscopic constants are: B0/MHz = 10 348.8706(2), DJ/kHz= 11.34482(13), DJK/kHz = -18.11765(50), HJJJ/Hz= 0.020069(24), HJJK/Hz = -0.08598(10), HKKJ/Hz 0.11372(27), LJ/mHz = -0.669(16) � 10-4, LJJK/mHz = 0.4953(80) � 10-3, LJK/mHz = -0.1189(17) � 10-2, and LJKK/mHz = -0.1115(31) � 10-2. The splitting of the K = 3 ground state lines has been observed starting from the J = 29 ? 28 transition and the determined values of the splitting constants are h3/Hz = 0.29689(45) �10-2 and dh3/Hz = -0.2054(52) � 10-7.
Journal/Review: JOURNAL OF MOLECULAR SPECTROSCOPY
Volume: 163 (2) Pages from: 521 to: 528
KeyWords: trifluoromethan
DOI: 10.1006/jmsp.1994.1044
Citations: 17
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