Abstract
In this work, analyses of the high resolution Fourier transform infrared (ir) spectra of normal and C-13 methyl alcohol have been applied to find new assignments for four far infrared (fir) laser lines pumped by the 10R (18) CO 2 laser line in 13CH 3OH. Three of these FIR laser lines are proposed to terminate at levels which are strongly interacted by Coriolis resonance. A Coriolis interaction hamiltonian has been derived which explains the energy splitting between the interacting in-plane CH 3-rocking and C-O stretching states. This is believed to be the first time that FIR laser lines are assigned to in-plane CH 3-rocking state of C-13 substituted methanol.
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