Infrared and Raman Spectra of Fluorinated Ethanes. VII. CCl3CF2Cl and CCl3CFCl2

Abstract

The infrared spectra of liquid CCl₃CF₂Cl and of CCl₃CFCl₂ as glass and in CS₂ solution, have been obtained in the region from 2 to 38μ with the aid of LiF, NaCl, KBr, and KRS−5 prisms. The Raman spectra of these compounds in the liquid state, at about 50° and 120°C, respectively, were photographed with a three‐prism glass spectrograph of linear dispersion 15A/mm at 4358A. Relative intensities and depolarization ratios were measured for all but the weakest Raman bands. Complete assignments of fundamental vibration frequencies have been made, the spectra have been interpreted in detail, and thermodynamic functions have been calculated.