Vibrational Intensities in Halogenated Methanes. III. The Interpretation of Solution Data

Using solution samples, the absolute infrared absorption intensities of five fundamental bands of CH2Cl2 were measured by an extrapolation technique and by approximate methods suggested by Ramsay. These determinations were used to test a classical relationship, proposed by Polo and Wilson, between corresponding liquid and vapor absorption band intensities. Qualitative agreement with published vapor intensity measurements was obtained.