OBSERVATION AND ANALYSIS OF THE FUNDAMENTAL BENDIHG MODE OF $T_{2}O$

Abstract

The absorption spectrum Of $T_{2}O$ has been observed at $0.04 cm^{-1}$ resolution using a Fourier transform infrared spectrometer. 549 transitions in the $\nu_{2}$ band centered at 995.326 have been assigned. 474 of these transitions were included in a fit in which the excited vibrational state constants were allowed to vary and the ground state constants hold fixed at values determined from microwave data. A Watson Hamiltonian with an AS reduction in a 3R representation was used for analysis. The terms retained in the rotational Hamiltonian for the ground state Included up to tenth order distortion constants while the Hamiltonian of the excited vibrational included only terms up to eighth order. The standard deviation of the fit was $0.008 cm^{-1}$.