REFRACTION SPECTRUM OF GASES IN THE INFRARED INTENSITIES AND WIDTHS OF LINES IN THE 2–0 BAND OF HCl

Abstract

Intensities and widths of lines in the 2–0 band of HCl have been determined from the refraction spectrum. A hollow prism refractometer was used together with a monochromator of high resolving power. Fairly elaborate corrections for instrumental effects were applied to the observations. A band intensity of 3.68 cm⁻² atm⁻¹ was obtained. The vibration–rotation constant θ was found to be 0.97. Both these values agree well with recent results for HCl obtained from the absorption spectrum.