Probing the Intermolecular Interactions in Binary Liquid Mixtures of 1-Tert-butoxy-2-propanol with Amines Through Volumetric, Ultrasonic and FT-IR Spectroscopic Studies at Different Temperatures

In the present discussion, thermodynamic and spectral behaviour of binary mixtures of 1-tert-butoxy-2-propanol with amines namely dipropylamine, diethylamine and triethylamine have been studied. To achieve the objectives, density (rho) and speed of sound (u) of selected liquids and their binary mixtures were measured over entire composition range and different temperatures (298.15, 303.15 and 308.15) K. Using the experimentally measured data, various excess properties were computed. Variation of these properties with composition has been discussed in terms of intermolecular interactions. Presence of strong intermolecular interactions has been confirmed by these excess and deviation properties. Magnitude of these parameters reflects the order of interaction among these liquid mixtures. Using the Redlich-Kister polynomial equation, these excess properties were correlated with composition. Further, density and speed of sound values of these binary mixtures were correlated with composition using Jouyban-Acree model. FT-IR spectra of these liquid mixtures have also been recorded. Spectral analysis of these mixtures also confirms the presence of strong intermolecular interactions in studied liquid mixtures.