THE $\nu_{1}$ BAND AND MOLECULAR PROPERTIES OF CHLOROSYL FLUORIDE, FClO

Abstract

Rotationally resolved spectra of FClO have been obtained for the first time employing the in situ hydrolysis of $ClF_{3}$. The molecule has also been proposed as an intermediate in several reactions involving $ClF, Cl_{2}O$, and $ClF_{3}O$. At present, the ClO stretching band centered near $1037.7 cm^{-1}$ for $F^{35}ClO$ has been recorded with a resolution of $0.003 cm^{-1}$, and its analysis is under way. Strong a-type and much weaker b-type lines have been assigned. Transitions with quantum numbers larger than 70 and 20 for J and $K_{a}$, respectively, enabled the determination of precise spectroscopic constants. The derived properties, such as molecular structure and force field, will be discussed in relation to ab initio results and data from related molecules, for example $FClO_{n}$, with $n = 0, 2, 3$.