SOME MICROWAVE AND INFRARED OBSERVATIONS ON THE METHANOL C-O STRETCH STATE
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Date
1983
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
Several microwave transitions of the$J = 2\leftarrow$ $1 v_{t}$ = 0 a-type multiplet in the excited C-O stretch state have been observed for $CH_{3}OH$. Also, a number of the k = 1 asymmetry doublets of the A torsional species in the $v_{t} = 1$ torsional state have been identified in the P and R branches of the diode laser spectra of the C-O stretch $band^{1}$, and in Fourier transform spectra of this band obtained from the Herzberg Institute of Astrophysics. The measured frequencies will be discussed in terms of the molecular constants, in particular the set of constants plus empirical corrections proposed by $Henningsen.^{2}$ In addition, comments will be made on the IR - IR 3-level double resonance observed with the $9P(34) CO_{2}$ laser line by Drs. R. R. Dasari and M. Feld at the Regional Laser Center, M. I. T., which confirms Henningsen’s $(n\tau K) = (125)$ assignment for the pumped $CH_{3}OH$ transition, and on Henningsen’s suggested identification of the X state with the in-plane $CH_{3}$ rock. $^{1}$J. P. Sattler, W. A. Riessler and T. L. Worchesky, Infrared Phys. 19, 217-224 (1979). $^{2}$ J.O. Henningsen, J. Mol. Spectrosc. 85, 282-300 (1981). $^{*}$Visiting Scientist, Regional Laser Center, M.I.T., August, 1982.
Description
$^{1}$J. P. Sattler, W. A. Riessler and T. L. Worchesky, Infrared Phys. 19, 217-224 (1979). $^{2}$ J.O. Henningsen, J. Mol. Spectrosc. 85, 282-300 (1981). $^{*}$Visiting Scientist, Regional Laser Center, M.I.T., August, 1982.
Author Institution: Department of Physics, University of New Brunswick Fredericton
Author Institution: Department of Physics, University of New Brunswick Fredericton