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HIGH RESOLUTION SPECTROSCOPIC STUDIES OF $CHY_{2}F_{2}$: THE $\nu_{6}$ BAND AT $3014 CM^{-1}$.

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/13203

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Title: HIGH RESOLUTION SPECTROSCOPIC STUDIES OF $CHY_{2}F_{2}$: THE $\nu_{6}$ BAND AT $3014 CM^{-1}$.
Creators: Deo, M. N.; D'Cunha, R.; Weber, A.
Issue Date: 1994
Abstract: Fourier transform infrared spectra of methylene fluoride have been recorded with the BOMEM DA3.002 spectrometer at NIST with an apodized resolution of $0.004 cm^{-1}$ in the region of the CH stretching fundamentals. Assignments have been made for the asymmetric CH stretching band $\nu_{6} 3014 cm^{-1}$, More than 400 lines have been assigned in this C-type perpendicular band with quantum numbers up to $J^{\prime\prime}_{max} = 16$ and $K^{\prime\prime}_{max} = 12$. The data have been fitted to Watson’s A-type reduced Hamiltonian in the Ist representation to obtain molecular parameters for the upper state. Evidence of perturbations beyond $J^{\prime\prime}_{max} = 16$, $K^{\prime\prime}_{max} = 10$ are discernible in the observed spectra. The $\nu_{6}$ level is expected to be perturbed by the $\nu_{1}$ fundamental level via coriolis coupling through rotations about the a-axis. Attempts to include the effect of perturbations with the neighboring fundamental and combination levels are underway. The details of the analysis will be presented.
URI: http://hdl.handle.net/1811/13203
Other Identifiers: 1994-RH-08
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