Infrared Spectroscopic Study of Hydrogen Bonding Associations Through C-O Band Intensities in Isopropanol-Water and t-Butanol-Water Mixtures

We investigated the hydrogen bonding in isopropanol-water and t-butanol-water mixtures in the mole fraction range 0.1 to 0.9 through the application of infrared spectroscopic technique. The inherent high intensity of the C-O band helps detect small changes in the hydrogen bonding associations. The integrated areas of the C-O stretching band versus mole fractions were plotted for both mixtures. The C-O plot areas were used to explain the molecular associations in the mixtures studied.