THE MICROWAVE SPECTRUM OF METHYL $HYPOCHLORITE^{\dagger}$
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Date
1961
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Ohio State University
Abstract
The microwave spectrum of methyl hypochlorite has been studied in the region from 8,000 KMc. to 37,000 KMc. and from 49,000 KMc. to 60,000 KMc. Due to the instability of the sample, the vapor was flowed through the wave guide which was always maintained at dry ice temperature. Both \emph{a} and \emph{b}-type transitions were identified and from these the rotational constants for the isotopic species $CH_{3}OCl^{35}$ are: A=42,064.10 Mc., B=6,297.06 Mc., and C=5,670.42 Mc. The asymmetry parameter, $\kappa$, is --0.96556. From a study of the hyperfine structure of the low J transition one can obtain the quadrupole coupling constants. With respect to the principal axis system these constants are: for $Cl^{35}$, $eQ\frac{\partial^{2} V}{\partial Z^{2}_{m}}=--84.0$ Mc. And $\eta = 0.408$; for $Cl^{37}, eQ\frac{\partial^{2} V}{\partial Z^{2}_{m}}=--67.0$ Mc. Lines due to the isotopic species $CH_{2}OCl^{37}$ have also been assigned.
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$^{\dagger}$The research was made possible by support extended Harvard University by the office of Naval Research under ONR Contract Nonr 1866. Task Order XIV.
Author Institution: Mallinckrodt Chemical Laboratory, Harvard University
Author Institution: Mallinckrodt Chemical Laboratory, Harvard University