CURRENT RESEARCH IN ROTATIONAL SPECTROSCOPY AT THE UNIVERSITY OF VALLADOLID
Publisher:
Ohio State UniversityAbstract:
We continue work on the rotational spectra of small ring molecules. The microwave and millimeter wave spectrum of azetidine in the ground and four excited states of the ring-puckering vibration have been analysed. The features associated to the inversion splttings of the $\mu_{c}$-type transition draw interesting conclusion about the potential energy surface of azetidine. A waveguide FT-MW spectrometer has been used to analyse the quadrupole hyperfine structure for all the observed states. Investigation in providing data on chlorofluorocarbon $molecules^{1}$ such as $CH_{2}FCl (FC-31), CHF_{2}Cl (FC-22), CHFCl-CH_{3} (FC - 151a)$ and $CHClF-CF_{3} (FC - 124)$ are under study. High resolution spectra by means of FT-MW spectroscopy allow a precise determination of quadrupole coupling constants and internal rotation parameters. Strong interaction have been observed between the $v_{6} = 2$ and $v_{5} = 1$ vibrational states of $CH_{2}F^{35}Cl$ molecule. On the basis of a Coriolis and Fermi coupling scheme more than 200 transitions have been analysed and precise values for rotation-vibration interaction parameters have been obtained.
Description:
$^{1}$This work is part of the programme of the European Community Human Capital and Mobility Network SCAMP (contract number: CHRXCT 930157)
Author Institution: "Facultad de Ciencias, Universidad de Valladolid", E-47005, Valladolid, Spain
Author Institution: "Facultad de Ciencias, Universidad de Valladolid", E-47005, Valladolid, Spain
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articleOther Identifiers:
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