首页|High-resolution spectroscopy of C2H3D: Line positions and energy structure of the strongly interacting nu(10), nu(7), nu(8), nu(4) and nu(6) bands

High-resolution spectroscopy of C2H3D: Line positions and energy structure of the strongly interacting nu(10), nu(7), nu(8), nu(4) and nu(6) bands

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  • NSTL
  • Elsevier
High resolution infrared spectra of C2H3D were recorded in the region of 550-1950 cm(-1) with a Bruker IFS125 HR Fourier transform infrared spectrometers and rotational structures of the five lowest strongly interacting nu(10), nu(7), nu(8), nu(4) and nu(6) bands were analyzed. The number of about 28000 transitions (4200/6800/5600/5000/6400 for the bands nu(10), nu(7), nu(8), nu(4) and nu(6)) with J(max) = 40 and K-a(max) = 20 were assigned to these five bands. The weighted fit of 3990 upper energy values obtained from the experimentally recorded transitions was made with a Hamiltonian which takes into account resonance interactions between all studied bands as well as with the sixth nu(3) band which was considered in this case as a "dark" one. As the result of analysis, a set of 279 fitted parameters was obtained which reproduces the initial 3990 upper "experimental" ro-vibrational energy values with the d(rms) = 1.7 x 10(-4) cm(-1); the initial non-saturated, unblended and not very weak of 28000 assigned transitions are reproduced with the d(rms) = 2.2 x 10(-4) cm(-1). Ground state parameters of the C2H3D molecule were improved as well. (C) 2022 Elsevier B.V. All rights reserved.

High resolution spectroscopy of ethyleneResonance interactions in asymmetric top moleculesSpectroscopic parametersRO-VIBRATIONAL ANALYSISDIODE-LASER SPECTRAFTIR SPECTRUMROVIBRATIONAL CONSTANTSBROADENING COEFFICIENTSCORIOLIS INTERACTIONINFRARED-SPECTRUMUPPER-ATMOSPHEREETHYLENEREGION

Ulenikov, O. N.、Bekhtereva, E. S.、Gromova, O. V.、Morzhikova, Yu. B.、Sydow, C.、Berezkin, K.、Maul, C.、Bauerecker, S.

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Natl Res Tomsk Polytech Univ

Tech Univ Carolo Wilhelmina Braunschweig

2022

10.1016/j.saa.2022.121401

Spectrochimica acta

Spectrochimica acta

ISSN：1386-1425
年,卷(期)：2022.279
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